[440] | 1 | #include "ViewCellsManager.h"
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| 2 | #include "RenderSimulator.h"
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| 3 | #include "Mesh.h"
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| 4 | #include "Triangle3.h"
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| 5 | #include "ViewCell.h"
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| 6 | #include "Environment.h"
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| 7 | #include "X3dParser.h"
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| 8 | #include "ViewCellBsp.h"
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| 9 | #include "KdTree.h"
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| 10 | #include "VspKdTree.h"
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| 11 | #include "Exporter.h"
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[442] | 12 | #include "VspBspTree.h"
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[508] | 13 | #include "ViewCellsParser.h"
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[532] | 14 | #include "Beam.h"
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[540] | 15 | #include "VssPreprocessor.h"
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| 16 | #include "RssPreprocessor.h"
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[440] | 17 |
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[712] | 18 | // HACK
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| 19 | const static bool SAMPLE_AFTER_SUBDIVISION = true;
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| 20 | const static bool TEST_EMPTY_VIEW_CELLS = false;
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[517] | 21 |
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[697] | 22 |
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| 23 |
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| 24 | template <typename T> class myless
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| 25 | {
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| 26 | public:
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| 27 | //bool operator() (HierarchyNode *v1, HierarchyNode *v2) const
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| 28 | bool operator() (T v1, T v2) const
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| 29 | {
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| 30 | return (v1->GetMergeCost() < v2->GetMergeCost());
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| 31 | }
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| 32 | };
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| 33 |
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[706] | 34 | //typedef priority_queue<ViewCell *, vector<ViewCell *>, myless<vector<ViewCell *>::value_type> > FilterQueue;
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[697] | 35 |
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| 36 |
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| 37 |
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[440] | 38 | ViewCellsManager::ViewCellsManager():
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[480] | 39 | mRenderer(NULL),
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[574] | 40 | mInitialSamples(0),
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[440] | 41 | mConstructionSamples(0),
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| 42 | mPostProcessSamples(0),
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[470] | 43 | mVisualizationSamples(0),
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| 44 | mTotalAreaValid(false),
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[517] | 45 | mTotalArea(0.0f),
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[547] | 46 | mViewCellsFinished(false),
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[562] | 47 | mMaxPvsSize(9999999),
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[564] | 48 | mMinPvsSize(0), // one means only empty view cells are invalid
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[719] | 49 | mMaxPvsRatio(1.0),
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| 50 | mViewCellPvsIsUpdated(false)
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[440] | 51 | {
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[542] | 52 | mViewSpaceBox.Initialize();
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[482] | 53 | ParseEnvironment();
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[580] | 54 |
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| 55 | mViewCellsTree = new ViewCellsTree(this);
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[440] | 56 | }
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| 57 |
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[517] | 58 |
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[482] | 59 | void ViewCellsManager::ParseEnvironment()
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| 60 | {
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[503] | 61 | // visualization stuff
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[485] | 62 | environment->GetBoolValue("ViewCells.Visualization.exportRays", mExportRays);
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| 63 | environment->GetBoolValue("ViewCells.Visualization.exportGeometry", mExportGeometry);
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[547] | 64 | environment->GetFloatValue("ViewCells.maxPvsRatio", mMaxPvsRatio);
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[664] | 65 |
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[710] | 66 | environment->GetBoolValue("ViewCells.pruneEmptyViewCells", mPruneEmptyViewCells);
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[664] | 67 |
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[710] | 68 | // HACK
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| 69 | if (0)
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| 70 | mMinPvsSize = mPruneEmptyViewCells ? 1 : 0;
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| 71 | else
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| 72 | mMinPvsSize = 0;
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| 73 |
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[564] | 74 | environment->GetBoolValue("ViewCells.processOnlyValidViewCells", mOnlyValidViewCells);
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[485] | 75 |
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[574] | 76 | environment->GetIntValue("ViewCells.Construction.samples", mConstructionSamples);
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| 77 | environment->GetIntValue("ViewCells.PostProcess.samples", mPostProcessSamples);
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[595] | 78 | environment->GetBoolValue("ViewCells.PostProcess.useRaysForMerge", mUseRaysForMerge);
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| 79 |
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[574] | 80 | environment->GetIntValue("ViewCells.Visualization.samples", mVisualizationSamples);
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| 81 |
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| 82 | environment->GetIntValue("ViewCells.Construction.samplesPerPass", mSamplesPerPass);
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[577] | 83 | environment->GetBoolValue("ViewCells.exportToFile", mExportViewCells);
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[581] | 84 |
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[600] | 85 | environment->GetIntValue("ViewCells.active", mNumActiveViewCells);
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[586] | 86 | environment->GetBoolValue("ViewCells.PostProcess.compress", mCompressViewCells);
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[660] | 87 | environment->GetBoolValue("ViewCells.Visualization.useClipPlane", mUseClipPlaneForViz);
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[591] | 88 | environment->GetBoolValue("ViewCells.PostProcess.merge", mMergeViewCells);
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[664] | 89 | environment->GetBoolValue("ViewCells.evaluateViewCells", mEvaluateViewCells);
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[666] | 90 | environment->GetBoolValue("ViewCells.showVisualization", mShowVisualization);
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[697] | 91 | environment->GetIntValue("ViewCells.Filter.maxSize", mMaxFilterSize);
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| 92 | environment->GetFloatValue("ViewCells.Filter.width", mFilterWidth);
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[734] | 93 | environment->GetIntValue("ViewCells.renderCostEvaluationType", mRenderCostEvaluationType);
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[710] | 94 |
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[664] | 95 | char buf[100];
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| 96 | environment->GetStringValue("ViewCells.samplingType", buf);
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| 97 |
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[660] | 98 |
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[664] | 99 | if (strcmp(buf, "box") == 0)
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[722] | 100 | {
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[660] | 101 | mSamplingType = Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
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[722] | 102 | }
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[664] | 103 | else if (strcmp(buf, "directional") == 0)
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[722] | 104 | {
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[660] | 105 | mSamplingType = Preprocessor::DIRECTION_BASED_DISTRIBUTION;
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[722] | 106 | }
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[666] | 107 | else
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| 108 | {
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| 109 | Debug << "error! wrong sampling type" << endl;
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| 110 | exit(0);
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| 111 | }
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[660] | 112 |
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[722] | 113 | environment->GetStringValue("ViewCells.Evaluation.samplingType", buf);
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| 114 |
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| 115 | if (strcmp(buf, "box") == 0)
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| 116 | {
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| 117 | mEvaluationSamplingType = Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
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| 118 | }
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| 119 | else if (strcmp(buf, "directional") == 0)
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| 120 | {
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| 121 | mEvaluationSamplingType = Preprocessor::DIRECTION_BASED_DISTRIBUTION;
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| 122 | }
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| 123 | else
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| 124 | {
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| 125 | Debug << "error! wrong sampling type" << endl;
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| 126 | exit(0);
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| 127 | }
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[503] | 128 |
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[728] | 129 | environment->GetStringValue("ViewCells.renderCostEvaluationType", buf);
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| 130 |
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[734] | 131 | if (strcmp(buf, "perobject") == 0)
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[728] | 132 | {
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| 133 | mRenderCostEvaluationType = ViewCellsManager::PER_OBJECT;
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| 134 | }
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| 135 | else if (strcmp(buf, "directional") == 0)
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| 136 | {
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| 137 | mRenderCostEvaluationType = ViewCellsManager::PER_TRIANGLE;
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| 138 | }
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| 139 | else
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| 140 | {
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| 141 | Debug << "error! wrong sampling type" << endl;
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| 142 | exit(0);
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| 143 | }
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| 144 |
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[722] | 145 | environment->GetStringValue("ViewCells.Visualization.colorCode", buf);
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| 146 |
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[482] | 147 | if (strcmp(buf, "PVS") == 0)
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| 148 | mColorCode = 1;
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| 149 | else if (strcmp(buf, "MergedLeaves") == 0)
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| 150 | mColorCode = 2;
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| 151 | else if (strcmp(buf, "MergedTreeDiff") == 0)
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| 152 | mColorCode = 3;
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| 153 | else
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| 154 | mColorCode = 0;
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| 155 |
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[664] | 156 |
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[710] | 157 |
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[664] | 158 | Debug << "***********View Cells options ****************" << endl;
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| 159 | Debug << "color code: " << mColorCode << endl;
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| 160 |
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| 161 | Debug << "export rays: " << mExportRays << endl;
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| 162 | Debug << "export geometry: " << mExportGeometry << endl;
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| 163 | Debug << "max pvs ratio: " << mMaxPvsRatio << endl;
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| 164 |
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[710] | 165 | Debug << "prune empty view cells: " << mPruneEmptyViewCells << endl;
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[664] | 166 |
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| 167 | Debug << "process only valid view cells: " << mOnlyValidViewCells << endl;
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| 168 | Debug << "construction samples: " << mConstructionSamples << endl;
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| 169 | Debug << "post process samples: " << mPostProcessSamples << endl;
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| 170 | Debug << "post process use rays for merge: " << mUseRaysForMerge << endl;
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| 171 | Debug << "visualization samples: " << mVisualizationSamples << endl;
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| 172 | Debug << "construction samples per pass: " << mSamplesPerPass << endl;
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| 173 | Debug << "export to file: " << mExportViewCells << endl;
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| 174 |
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| 175 | Debug << "active: " << mNumActiveViewCells << endl;
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| 176 | Debug << "post process compress: " << mCompressViewCells << endl;
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| 177 | Debug << "visualization use clipPlane: " << mUseClipPlaneForViz << endl;
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| 178 | Debug << "post process merge: " << mMergeViewCells << endl;
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| 179 | Debug << "evaluate view cells: " << mEvaluateViewCells << endl;
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| 180 | Debug << "sampling type: " << mSamplingType << endl;
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[728] | 181 | Debug << "render cost evaluation type" << mRenderCostEvaluationType << endl;
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| 182 | Debug << "evaluation sampling type: " << mEvaluationSamplingType << endl;
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[666] | 183 | Debug << "show visualization: " << mShowVisualization << endl;
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[697] | 184 | Debug << "filter width: " << mFilterWidth << endl;
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[710] | 185 | Debug << "sample after subdivision: " << SAMPLE_AFTER_SUBDIVISION << endl;
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[664] | 186 | Debug << endl;
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[440] | 187 | }
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| 188 |
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[485] | 189 |
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[440] | 190 | ViewCellsManager::~ViewCellsManager()
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| 191 | {
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[480] | 192 | DEL_PTR(mRenderer);
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[580] | 193 |
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[598] | 194 | if (!ViewCellsTreeConstructed())
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| 195 | CLEAR_CONTAINER(mViewCells);
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| 196 | else
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| 197 | DEL_PTR(mViewCellsTree);
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| 198 |
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[503] | 199 | CLEAR_CONTAINER(mMeshContainer);
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[440] | 200 | }
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| 201 |
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[485] | 202 |
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[693] | 203 | void ViewCellsManager::CollectEmptyViewCells()
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| 204 | {
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| 205 | mEmptyViewCells.clear();
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| 206 | ViewCellContainer leaves;
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| 207 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
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| 208 |
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| 209 | ViewCellContainer::const_iterator it, it_end = leaves.end();
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| 210 |
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| 211 | cout << "collecting empty view cells" << endl;
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[694] | 212 |
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[693] | 213 | for (it = leaves.begin(); it != it_end; ++ it)
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| 214 | {
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| 215 | if ((*it)->GetPvs().Empty())
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| 216 | {
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| 217 | mEmptyViewCells.push_back(*it);
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| 218 | }
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| 219 | }
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[694] | 220 | Debug << "empty view cells found: " << (int)mEmptyViewCells.size() << endl;
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[693] | 221 | }
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| 222 |
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| 223 |
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[694] | 224 | void ViewCellsManager::TestEmptyViewCells(const ObjectContainer &obj)
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[693] | 225 | {
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| 226 | ViewCellContainer::const_iterator it, it_end = mEmptyViewCells.end();
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| 227 |
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| 228 | char buf[50];
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| 229 | int i = 0;
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| 230 | for (it = mEmptyViewCells.begin(); it != it_end; ++ it)
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| 231 | {
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| 232 | if (!(*it)->GetPvs().Empty())
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| 233 | {
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[694] | 234 | sprintf(buf, "empty-viewcells-%09d.x3d", i/*(*it)->GetId()*/);
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[693] | 235 | Exporter *exporter = Exporter::GetExporter(buf);
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| 236 |
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| 237 | if (exporter && i < 20)
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| 238 | {
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[694] | 239 | Ray *pray = (*it)->mPiercingRays[0];
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[728] | 240 | Debug << "view cell " << (*it)->GetId() << " not empty, pvs: "
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| 241 | << (*it)->GetPvs().GetSize() << " " << (int)pray->intersections.size() << endl;
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[694] | 242 |
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| 243 | exporter->ExportRays((*it)->mPiercingRays);
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| 244 |
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| 245 | exporter->SetFilled();
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| 246 | exporter->SetForcedMaterial(RgbColor(0,0,1));
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| 247 |
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| 248 | for (int j = 0; j < (int)pray->intersections.size(); ++ j)
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| 249 | {
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| 250 | if (pray->intersections[j].mObject)
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| 251 | exporter->ExportIntersectable(pray->intersections[j].mObject);
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| 252 | }
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| 253 |
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| 254 | //exporter->SetWireframe();
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| 255 | exporter->SetForcedMaterial(RgbColor(0,1,0));
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| 256 | exporter->ExportGeometry(obj);
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| 257 |
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| 258 | exporter->SetFilled();
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| 259 |
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| 260 | exporter->SetForcedMaterial(RgbColor(1,0,0));
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[693] | 261 | ExportViewCellGeometry(exporter, *it);
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[694] | 262 |
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| 263 | delete exporter;
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[693] | 264 | }
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| 265 |
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[694] | 266 |
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[693] | 267 | ++ i;
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| 268 | }
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| 269 | }
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[694] | 270 | Debug << "\nSampled " << i << " new view cells (" << " of " << (int)mEmptyViewCells.size() << ")" << endl << endl;
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[693] | 271 | }
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| 272 |
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| 273 |
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[574] | 274 | int ViewCellsManager::CastPassSamples(const int samplesPerPass,
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| 275 | const int sampleType,
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| 276 | VssRayContainer &passSamples) const
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[527] | 277 | {
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[570] | 278 | SimpleRayContainer simpleRays;
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[540] | 279 |
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[573] | 280 | preprocessor->GenerateRays(samplesPerPass,
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| 281 | sampleType,
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[570] | 282 | simpleRays);
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[564] | 283 |
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[573] | 284 | // shoot simple ray and add it to importance samples
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| 285 | preprocessor->CastRays(simpleRays, passSamples);
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[570] | 286 |
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[574] | 287 | return (int)passSamples.size();
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| 288 | }
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[570] | 289 |
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[574] | 290 |
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[607] | 291 |
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[574] | 292 | /// helper function which destroys rays or copies them into the output ray container
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[639] | 293 | inline void disposeRays(VssRayContainer &rays, VssRayContainer *outRays)
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[574] | 294 | {
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| 295 | cout << "disposing samples ... ";
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[582] | 296 | long startTime = GetTime();
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| 297 | int n = (int)rays.size();
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| 298 |
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[573] | 299 | if (outRays)
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[542] | 300 | {
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[574] | 301 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 302 |
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| 303 | for (it = rays.begin(); it != it_end; ++ it)
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| 304 | {
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| 305 | outRays->push_back(*it);
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| 306 | }
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[573] | 307 | }
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| 308 | else
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| 309 | {
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[639] | 310 | VssRayContainer::const_iterator it, it_end = rays.end();
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| 311 |
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| 312 | for (it = rays.begin(); it != it_end; ++ it)
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| 313 | {
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| 314 | //(*it)->Unref();
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| 315 | if (!(*it)->IsActive())
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| 316 | delete (*it);
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| 317 | }
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[573] | 318 | }
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[639] | 319 |
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[574] | 320 | cout << "finished" << endl;
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[582] | 321 | Debug << "disposed " << n << " samples in " << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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[573] | 322 | }
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[570] | 323 |
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| 324 |
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[573] | 325 | int ViewCellsManager::Construct(Preprocessor *preprocessor, VssRayContainer *outRays)
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| 326 | {
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| 327 | int numSamples = 0;
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| 328 | SimpleRayContainer simpleRays;
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| 329 |
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[574] | 330 | VssRayContainer initialSamples;
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[540] | 331 |
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[574] | 332 | cout << "view cell construction: casting " << mInitialSamples << " initial samples ... ";
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[712] | 333 |
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[752] | 334 | long startTime = GetTime();
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| 335 |
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[573] | 336 | //-- construction rays => we use uniform samples for this
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[574] | 337 | CastPassSamples(mInitialSamples,
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[660] | 338 | mSamplingType,
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[574] | 339 | initialSamples);
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[573] | 340 |
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[574] | 341 | cout << "finished" << endl;
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| 342 |
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[660] | 343 |
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[573] | 344 | // construct view cells
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[752] | 345 | ConstructSubdivision(preprocessor->mObjects, initialSamples);
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[540] | 346 |
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[727] | 347 | // initial samples count for overall samples ...
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[752] | 348 | numSamples += mInitialSamples;
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[542] | 349 |
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[574] | 350 | // rays can be passed or deleted
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[639] | 351 | disposeRays(initialSamples, outRays);
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[752] | 352 |
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| 353 | cout << "time needed for initial construction: "
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| 354 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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| 355 |
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| 356 | Debug << "time needed for initial construction: "
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| 357 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
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| 358 |
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| 359 |
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| 360 | // take post processing time
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| 361 | startTime = GetTime();
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| 362 |
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| 363 |
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[720] | 364 | // testing the view cell filter functionality
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| 365 | if (0) TestFilter(preprocessor->mObjects);
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[570] | 366 |
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[660] | 367 | // -- stats after contruction
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| 368 | ResetViewCells();
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| 369 |
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[667] | 370 | Debug << "\nView cells after initial sampling:\n" << mCurrentViewCellsStats << endl;
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| 371 |
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[683] | 372 | if (1) // export initial view cells
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[660] | 373 | {
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[712] | 374 | const char filename[] = "view_cells.wrl";
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| 375 | Exporter *exporter = Exporter::GetExporter(filename);
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[660] | 376 |
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[712] | 377 |
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[660] | 378 | if (exporter)
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| 379 | {
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[712] | 380 | cout << "exporting initial view cells (=leaves) to " << filename << " ... ";
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[660] | 381 | if (mExportGeometry)
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[712] | 382 | {
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[660] | 383 | exporter->ExportGeometry(preprocessor->mObjects);
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[712] | 384 | }
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[660] | 385 |
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[750] | 386 | exporter->SetWireframe();
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[660] | 387 | ExportViewCellsForViz(exporter);
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| 388 |
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| 389 | delete exporter;
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[712] | 390 | cout << "finished" << endl;
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[660] | 391 | }
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| 392 | }
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| 393 |
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[573] | 394 | //-- guided rays are used for further sampling
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[574] | 395 | const int n = mConstructionSamples; //+initialSamples;
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[570] | 396 |
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[666] | 397 | // should we use directional samples?
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[694] | 398 | bool dirSamples = (mSamplingType == Preprocessor::DIRECTION_BASED_DISTRIBUTION);
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[573] | 399 |
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[712] | 400 | // -- the main loop
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[573] | 401 | while (numSamples < n)
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| 402 | {
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[596] | 403 | cout << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
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[727] | 404 | Debug << "casting " << mSamplesPerPass << " samples of " << n << " ... ";
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| 405 |
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[574] | 406 | VssRayContainer constructionSamples;
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| 407 |
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[694] | 408 | const int samplingType = mSamplingType;
|
---|
| 409 | /*dirSamples ?
|
---|
[574] | 410 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
|
---|
[694] | 411 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;*/
|
---|
[667] | 412 |
|
---|
[720] | 413 | if (0) dirSamples = !dirSamples; // toggle sampling method
|
---|
[667] | 414 |
|
---|
[727] | 415 | // cast new samples
|
---|
[574] | 416 | numSamples += CastPassSamples(mSamplesPerPass,
|
---|
[666] | 417 | samplingType,
|
---|
[574] | 418 | constructionSamples);
|
---|
| 419 |
|
---|
| 420 | cout << "finished" << endl;
|
---|
| 421 |
|
---|
| 422 | cout << "computing sample contribution for " << (int)constructionSamples.size() << " samples ... ";
|
---|
| 423 |
|
---|
[727] | 424 | // computes sample contribution of cast rays TODO: leak?
|
---|
| 425 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
[605] | 426 | ComputeSampleContributions(constructionSamples, true, false);
|
---|
[712] | 427 |
|
---|
[574] | 428 | cout << "finished" << endl;
|
---|
| 429 |
|
---|
| 430 |
|
---|
[639] | 431 | disposeRays(constructionSamples, outRays);
|
---|
[574] | 432 |
|
---|
| 433 | cout << "total samples: " << numSamples << endl;
|
---|
[542] | 434 | }
|
---|
[752] | 435 |
|
---|
[573] | 436 |
|
---|
[570] | 437 |
|
---|
[573] | 438 | //-- post processing
|
---|
| 439 | VssRayContainer postProcessSamples;
|
---|
[570] | 440 |
|
---|
[694] | 441 | //-- construction rays
|
---|
[574] | 442 | CastPassSamples(mPostProcessSamples,
|
---|
[694] | 443 | mSamplingType,
|
---|
[574] | 444 | postProcessSamples);
|
---|
[660] | 445 |
|
---|
| 446 |
|
---|
| 447 | // stats before post processing (i.e., merge)
|
---|
| 448 | EvaluateViewCellsStats();
|
---|
| 449 | Debug << "\noriginal view cell partition before post process:\n" << mCurrentViewCellsStats << endl;
|
---|
| 450 |
|
---|
| 451 | mRenderer->RenderScene();
|
---|
| 452 | SimulationStatistics ss;
|
---|
| 453 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 454 |
|
---|
| 455 | Debug << ss << endl;
|
---|
| 456 |
|
---|
| 457 |
|
---|
| 458 |
|
---|
[574] | 459 | cout << "starting post processing and visualization" << endl;
|
---|
| 460 |
|
---|
[660] | 461 |
|
---|
[666] | 462 | // store view cells for postprocessing
|
---|
[574] | 463 | const bool storeViewCells = true;
|
---|
[605] | 464 |
|
---|
[660] | 465 |
|
---|
[605] | 466 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 467 | ComputeSampleContributions(postProcessSamples, true, storeViewCells);
|
---|
[663] | 468 |
|
---|
[720] | 469 | //-- post processing (e.g.,merging) of the view cells
|
---|
[573] | 470 | PostProcess(preprocessor->mObjects, postProcessSamples);
|
---|
[570] | 471 |
|
---|
[752] | 472 | cout << "time needed for post processing (merge) step: "
|
---|
| 473 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 474 |
|
---|
| 475 | Debug << "time needed for post processing (merge) step: "
|
---|
| 476 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 477 |
|
---|
[720] | 478 | // only for debugging purpose
|
---|
[694] | 479 | if (TEST_EMPTY_VIEW_CELLS)
|
---|
| 480 | CollectEmptyViewCells();
|
---|
[570] | 481 |
|
---|
[693] | 482 |
|
---|
[574] | 483 | //-- visualization
|
---|
[666] | 484 | if (mShowVisualization)
|
---|
| 485 | {
|
---|
| 486 | VssRayContainer visualizationSamples;
|
---|
[574] | 487 |
|
---|
[666] | 488 | //-- construction rays => we use uniform samples for this
|
---|
| 489 | CastPassSamples(mVisualizationSamples,
|
---|
| 490 | Preprocessor::DIRECTION_BASED_DISTRIBUTION,
|
---|
| 491 | visualizationSamples);
|
---|
[574] | 492 |
|
---|
[666] | 493 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 494 | ComputeSampleContributions(visualizationSamples, true, storeViewCells);
|
---|
[574] | 495 |
|
---|
[666] | 496 | // different visualizations
|
---|
| 497 | Visualize(preprocessor->mObjects, visualizationSamples);
|
---|
[574] | 498 |
|
---|
[666] | 499 | disposeRays(visualizationSamples, outRays);
|
---|
| 500 | }
|
---|
[574] | 501 |
|
---|
[720] | 502 | // evaluation of the paritition, i.e., a number of new samples are cast
|
---|
[664] | 503 | if (mEvaluateViewCells)
|
---|
| 504 | {
|
---|
[666] | 505 | EvalViewCellPartition(preprocessor);
|
---|
[664] | 506 | }
|
---|
[666] | 507 |
|
---|
[573] | 508 | return numSamples;
|
---|
[527] | 509 | }
|
---|
| 510 |
|
---|
[547] | 511 |
|
---|
[752] | 512 | void ViewCellsManager::EvalViewCellHistogram(const string filename,
|
---|
| 513 | const int nViewCells)
|
---|
[728] | 514 | {
|
---|
| 515 | std::ofstream outstream;
|
---|
| 516 | outstream.open(filename.c_str());
|
---|
| 517 |
|
---|
| 518 | ViewCellContainer viewCells;
|
---|
[735] | 519 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[728] | 520 |
|
---|
| 521 | float maxRenderCost, minRenderCost;
|
---|
[734] | 522 |
|
---|
| 523 | // sort by render cost
|
---|
| 524 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerRenderCost);
|
---|
| 525 |
|
---|
| 526 | minRenderCost = viewCells.front()->GetRenderCost();
|
---|
| 527 | maxRenderCost = viewCells.back()->GetRenderCost();
|
---|
| 528 |
|
---|
[736] | 529 | Debug << "histogram minrc: " << minRenderCost << " maxrc: " << maxRenderCost << endl;
|
---|
| 530 |
|
---|
[752] | 531 | const int intervals = min(50, (int)viewCells.size());
|
---|
[735] | 532 |
|
---|
[728] | 533 | const float range = maxRenderCost - minRenderCost;
|
---|
[735] | 534 | const float stepSize = range / (float)intervals;
|
---|
[728] | 535 |
|
---|
[735] | 536 | float currentRenderCost = minRenderCost;//(int)ceil(minRenderCost);
|
---|
| 537 |
|
---|
| 538 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 539 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
[736] | 540 | //const float totalVol = mViewCellsTree->GetRoot()->GetVolume();
|
---|
[735] | 541 |
|
---|
[736] | 542 | //float vol = 0;
|
---|
| 543 | //int smallerCost = 0;
|
---|
| 544 | int j = 0;
|
---|
[735] | 545 | int i = 0;
|
---|
| 546 |
|
---|
[734] | 547 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 548 |
|
---|
[744] | 549 | // count for integral
|
---|
| 550 | float volSum = 0;
|
---|
| 551 | int smallerCostSum = 0;
|
---|
[735] | 552 |
|
---|
[734] | 553 | // note can skip computations for view cells already evaluated and delete them from vector ...
|
---|
| 554 | while (1)
|
---|
| 555 | {
|
---|
[744] | 556 | // count for histogram value
|
---|
| 557 | float volDif = 0;
|
---|
| 558 | int smallerCostDif = 0;
|
---|
[736] | 559 |
|
---|
[734] | 560 | while ((i < (int)viewCells.size()) && (viewCells[i]->GetRenderCost() < currentRenderCost))
|
---|
| 561 | {
|
---|
[744] | 562 | volSum += viewCells[i]->GetVolume();
|
---|
| 563 | volDif += viewCells[i]->GetVolume();
|
---|
| 564 |
|
---|
[734] | 565 | ++ i;
|
---|
[744] | 566 | ++ smallerCostSum;
|
---|
| 567 | ++ smallerCostDif;
|
---|
[734] | 568 | }
|
---|
[736] | 569 |
|
---|
[744] | 570 | if ((i >= (int)viewCells.size()) || (currentRenderCost >= maxRenderCost))
|
---|
[735] | 571 | break;
|
---|
[736] | 572 |
|
---|
[744] | 573 | const float rcRatio = currentRenderCost / maxRenderCost;
|
---|
| 574 | const float volRatioSum = volSum / totalVol;
|
---|
| 575 | const float volRatioDif = volDif / totalVol;
|
---|
[735] | 576 |
|
---|
[736] | 577 | outstream << "#Pass\n" << j << endl;
|
---|
| 578 | outstream << "#RenderCostRatio\n" << rcRatio << endl;
|
---|
| 579 | outstream << "#WeightedCost\n" << currentRenderCost / totalVol << endl;
|
---|
[744] | 580 | outstream << "#ViewCellsDif\n" << smallerCostDif << endl;
|
---|
| 581 | outstream << "#ViewCellsSum\n" << smallerCostSum << endl;
|
---|
| 582 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 583 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[735] | 584 |
|
---|
| 585 | // increase current render cost
|
---|
[734] | 586 | currentRenderCost += stepSize;
|
---|
[736] | 587 | ++ j;
|
---|
[734] | 588 | }
|
---|
[735] | 589 |
|
---|
[734] | 590 | outstream.close();
|
---|
| 591 | }
|
---|
| 592 |
|
---|
[735] | 593 |
|
---|
| 594 | void ViewCellsManager::EvalViewCellHistogramForPvsSize(const string filename,
|
---|
| 595 | const int nViewCells)
|
---|
[734] | 596 | {
|
---|
| 597 | std::ofstream outstream;
|
---|
| 598 | outstream.open(filename.c_str());
|
---|
| 599 |
|
---|
| 600 | ViewCellContainer viewCells;
|
---|
[735] | 601 | mViewCellsTree->CollectBestViewCellSet(viewCells, nViewCells);
|
---|
[734] | 602 |
|
---|
[735] | 603 | int maxPvsSize, minPvsSize;
|
---|
[734] | 604 |
|
---|
[735] | 605 | // sort by render cost
|
---|
| 606 | sort(viewCells.begin(), viewCells.end(), ViewCell::SmallerPvs);
|
---|
| 607 |
|
---|
| 608 | minPvsSize = viewCells.front()->GetPvs().GetSize();
|
---|
| 609 | maxPvsSize = viewCells.back()->GetPvs().GetSize();
|
---|
[736] | 610 |
|
---|
[752] | 611 | minPvsSize = 0;
|
---|
| 612 | maxPvsSize = 1200;
|
---|
| 613 |
|
---|
[736] | 614 | Debug << "histogram minpvssize: " << minPvsSize << " maxpvssize: " << maxPvsSize << endl;
|
---|
[735] | 615 |
|
---|
[752] | 616 | const int intervals = min(20, (int)viewCells.size());
|
---|
[735] | 617 | const int range = maxPvsSize - minPvsSize;
|
---|
| 618 | int stepSize = range / intervals;
|
---|
| 619 |
|
---|
[752] | 620 |
|
---|
[735] | 621 | if (!stepSize) stepSize = 1;
|
---|
[752] | 622 | Debug << "stepsize: " << stepSize << endl;
|
---|
| 623 | cout << "stepsize: " << stepSize << endl;
|
---|
[735] | 624 |
|
---|
| 625 | const float totalRenderCost = mViewCellsTree->GetRoot()->GetRenderCost();
|
---|
| 626 | const float totalVol = GetViewSpaceBox().GetVolume();
|
---|
| 627 |
|
---|
| 628 | int currentPvsSize = minPvsSize;//(int)ceil(minRenderCost);
|
---|
| 629 |
|
---|
[736] | 630 | //float vol = 0;
|
---|
[735] | 631 | int i = 0;
|
---|
| 632 | int j = 0;
|
---|
[734] | 633 |
|
---|
[744] | 634 | float volSum = 0;
|
---|
| 635 | int smallerSum = 0;
|
---|
| 636 |
|
---|
[735] | 637 | ViewCellContainer::const_iterator it = viewCells.begin(), it_end = viewCells.end();
|
---|
| 638 |
|
---|
[736] | 639 | while (1)
|
---|
[728] | 640 | {
|
---|
[744] | 641 | float volDif = 0;
|
---|
| 642 | int smallerDif = 0;
|
---|
[736] | 643 |
|
---|
[735] | 644 | while ((i < (int)viewCells.size()) && (viewCells[i]->GetPvs().GetSize() < currentPvsSize))
|
---|
| 645 | {
|
---|
[744] | 646 | volDif += viewCells[i]->GetVolume();
|
---|
| 647 | volSum += viewCells[i]->GetVolume();
|
---|
[735] | 648 | ++ i;
|
---|
[744] | 649 | ++ smallerDif;
|
---|
| 650 | ++ smallerSum;
|
---|
[735] | 651 | }
|
---|
[736] | 652 |
|
---|
[744] | 653 | //if (i < (int)viewCells.size())
|
---|
| 654 | // Debug << "new pvs size increase: " << viewCells[i]->GetPvs().GetSize() << " " << currentPvsSize << endl;
|
---|
[728] | 655 |
|
---|
[735] | 656 | if ((i >= (int)viewCells.size()) || (currentPvsSize >= maxPvsSize))
|
---|
| 657 | break;
|
---|
[728] | 658 |
|
---|
[744] | 659 | const float volRatioDif = volDif / totalVol;
|
---|
| 660 | const float volRatioSum = volSum / totalVol;
|
---|
[728] | 661 |
|
---|
[735] | 662 | outstream << "#Pass\n" << j ++ << endl;
|
---|
| 663 | outstream << "#Pvs\n" << currentPvsSize << endl;
|
---|
[744] | 664 | outstream << "#ViewCellsDif\n" << smallerDif << endl;
|
---|
| 665 | outstream << "#ViewCellsSum\n" << smallerSum << endl;
|
---|
| 666 | outstream << "#VolumeDif\n" << volRatioDif << endl << endl;
|
---|
| 667 | outstream << "#VolumeSum\n" << volRatioSum << endl << endl;
|
---|
[729] | 668 |
|
---|
[735] | 669 | // increase current pvs size
|
---|
| 670 | currentPvsSize += stepSize;
|
---|
[728] | 671 | }
|
---|
[735] | 672 | outstream.close();
|
---|
[728] | 673 | }
|
---|
| 674 |
|
---|
[735] | 675 |
|
---|
[664] | 676 | void ViewCellsManager::EvalViewCellPartition(Preprocessor *preprocessor)
|
---|
[660] | 677 | {
|
---|
| 678 | int samplesPerPass;
|
---|
| 679 | int numSamples;
|
---|
| 680 | int castSamples = 0;
|
---|
| 681 |
|
---|
[664] | 682 | char s[64];
|
---|
| 683 |
|
---|
[660] | 684 | environment->GetIntValue("ViewCells.Evaluation.samplesPerPass", samplesPerPass);
|
---|
| 685 | environment->GetIntValue("ViewCells.Evaluation.samples", numSamples);
|
---|
| 686 |
|
---|
[664] | 687 | char statsPrefix[100];
|
---|
| 688 | environment->GetStringValue("ViewCells.Evaluation.statsPrefix", statsPrefix);
|
---|
[663] | 689 |
|
---|
[664] | 690 | Debug << "view cell evaluation samples per pass: " << samplesPerPass << endl;
|
---|
| 691 | Debug << "view cell evaluation samples: " << numSamples << endl;
|
---|
| 692 | Debug << "view cell stats prefix: " << statsPrefix << endl;
|
---|
| 693 |
|
---|
| 694 | //VssRayContainer outRays;
|
---|
[666] | 695 | // should directional sampling be used?
|
---|
[722] | 696 | bool dirSamples = (mEvaluationSamplingType == Preprocessor::DIRECTION_BASED_DISTRIBUTION);
|
---|
[664] | 697 |
|
---|
[744] | 698 | cout << "collect leaf view cells and reseting pvs ... ";
|
---|
[664] | 699 |
|
---|
| 700 | ViewCellContainer leaves;
|
---|
| 701 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
[744] | 702 | cout << " ... ";
|
---|
[666] | 703 | bool startFromZero = true;
|
---|
| 704 |
|
---|
| 705 | // reset pvs and start over from zero
|
---|
| 706 | if (startFromZero)
|
---|
| 707 | {
|
---|
| 708 | mViewCellsTree->ResetPvs();
|
---|
| 709 | }
|
---|
| 710 | else // statistics without addidtional samples
|
---|
| 711 | {
|
---|
| 712 | cout << "compute new statistics ... ";
|
---|
| 713 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
| 714 | string fName = string(statsPrefix) + string(s);
|
---|
| 715 |
|
---|
| 716 | mViewCellsTree->ExportStats(fName);
|
---|
| 717 | cout << "finished" << endl;
|
---|
| 718 | }
|
---|
| 719 |
|
---|
[744] | 720 | cout << "finished" << endl;
|
---|
| 721 |
|
---|
| 722 | cout << "Evaluating view cell partition" << endl;
|
---|
| 723 |
|
---|
[660] | 724 | while (castSamples < numSamples)
|
---|
| 725 | {
|
---|
[664] | 726 | VssRayContainer evaluationSamples;
|
---|
[663] | 727 |
|
---|
[722] | 728 | const int samplingType = mEvaluationSamplingType;
|
---|
[666] | 729 | /* dirSamples ?
|
---|
[664] | 730 | Preprocessor::DIRECTION_BASED_DISTRIBUTION :
|
---|
| 731 | Preprocessor::SPATIAL_BOX_BASED_DISTRIBUTION;
|
---|
[666] | 732 | */
|
---|
[664] | 733 | //-- construction rays => we use uniform samples for this
|
---|
[744] | 734 | cout << "casting " << samplesPerPass << " samples " << endl;
|
---|
[664] | 735 | CastPassSamples(samplesPerPass, samplingType, evaluationSamples);
|
---|
| 736 |
|
---|
| 737 | castSamples += samplesPerPass;
|
---|
| 738 |
|
---|
[752] | 739 | cout << "computing sample contributions of " << (int)evaluationSamples.size()
|
---|
| 740 | << " samples " << endl;
|
---|
[664] | 741 |
|
---|
| 742 | ComputeSampleContributions(evaluationSamples, true, false);
|
---|
| 743 |
|
---|
| 744 | cout << "compute new statistics ... ";
|
---|
| 745 |
|
---|
[752] | 746 | // propagate pvs or pvs size information
|
---|
| 747 | ObjectPvs pvs;
|
---|
| 748 | UpdatePvsForEvaluation(mViewCellsTree->GetRoot(), pvs);
|
---|
[664] | 749 |
|
---|
| 750 |
|
---|
| 751 | // output stats
|
---|
[667] | 752 | sprintf(s, "-%09d-eval.log", castSamples);
|
---|
[664] | 753 | string fileName = string(statsPrefix) + string(s);
|
---|
| 754 |
|
---|
| 755 | mViewCellsTree->ExportStats(fileName);
|
---|
| 756 |
|
---|
| 757 | cout << "finished" << endl;
|
---|
| 758 |
|
---|
| 759 | disposeRays(evaluationSamples, NULL);
|
---|
[660] | 760 | }
|
---|
[728] | 761 |
|
---|
[735] | 762 | bool useHisto;
|
---|
| 763 | int histoPasses;
|
---|
[693] | 764 |
|
---|
[735] | 765 | environment->GetBoolValue("ViewCells.Evaluation.histogram", useHisto);
|
---|
| 766 | environment->GetIntValue("ViewCells.Evaluation.histoPasses", histoPasses);
|
---|
[728] | 767 |
|
---|
[744] | 768 | const int numLeaves = mViewCellsTree->GetNumInitialViewCells(mViewCellsTree->GetRoot());
|
---|
[736] | 769 |
|
---|
| 770 | Debug << "number of leaves: " << numLeaves << endl;
|
---|
| 771 | cout << "number of leaves: " << numLeaves << endl;
|
---|
| 772 |
|
---|
[735] | 773 | if (useHisto)
|
---|
[734] | 774 | {
|
---|
[735] | 775 | // evaluate view cells in a histogram
|
---|
| 776 | char s[64];
|
---|
[744] | 777 | #if 0
|
---|
[735] | 778 | for (int passes = 1; passes <= histoPasses; ++ passes)
|
---|
| 779 | {
|
---|
[736] | 780 | int n = numLeaves * passes / histoPasses;
|
---|
[734] | 781 |
|
---|
[735] | 782 | cout << "computing histogram for " << n << " view cells" << endl;
|
---|
| 783 |
|
---|
| 784 | //-- evaluate histogram for render cost
|
---|
| 785 | sprintf(s, "-%09d-histo.log", n);
|
---|
| 786 | string filename = string(statsPrefix) + string(s);
|
---|
| 787 |
|
---|
| 788 | EvalViewCellHistogram(filename, n);
|
---|
| 789 |
|
---|
| 790 | //////////////////////////////////////////
|
---|
| 791 | // --evaluate histogram for pvs size
|
---|
| 792 |
|
---|
| 793 | cout << "computing pvs histogram for " << n << " view cells" << endl;
|
---|
| 794 |
|
---|
| 795 | sprintf(s, "-%09d-histo-pvs.log", n);
|
---|
| 796 | filename = string(statsPrefix) + string(s);
|
---|
| 797 |
|
---|
| 798 | EvalViewCellHistogramForPvsSize(filename, n);
|
---|
| 799 | }
|
---|
[744] | 800 | #else
|
---|
[752] | 801 | for (int pass = histoPasses; pass <= numLeaves; pass += histoPasses)
|
---|
[744] | 802 | {
|
---|
| 803 | cout << "computing histogram for " << pass << " view cells" << endl;
|
---|
| 804 |
|
---|
| 805 | //-- evaluate histogram for render cost
|
---|
| 806 | sprintf(s, "-%09d-histo.log", pass);
|
---|
| 807 | string filename = string(statsPrefix) + string(s);
|
---|
| 808 |
|
---|
| 809 | EvalViewCellHistogram(filename, pass);
|
---|
| 810 |
|
---|
| 811 | //////////////////////////////////////////
|
---|
[752] | 812 | //-- evaluate histogram for pvs size
|
---|
[744] | 813 |
|
---|
| 814 | cout << "computing pvs histogram for " << pass << " view cells" << endl;
|
---|
| 815 |
|
---|
| 816 | sprintf(s, "-%09d-histo-pvs.log", pass);
|
---|
| 817 | filename = string(statsPrefix) + string(s);
|
---|
| 818 |
|
---|
| 819 | EvalViewCellHistogramForPvsSize(filename, pass);
|
---|
| 820 | }
|
---|
| 821 | #endif
|
---|
[734] | 822 | }
|
---|
| 823 |
|
---|
[693] | 824 | // find empty view cells bug
|
---|
[694] | 825 | if (TEST_EMPTY_VIEW_CELLS)
|
---|
[719] | 826 | {
|
---|
[694] | 827 | TestEmptyViewCells(preprocessor->mObjects);
|
---|
[719] | 828 | }
|
---|
[660] | 829 | }
|
---|
| 830 |
|
---|
[704] | 831 |
|
---|
| 832 | inline float EvalMergeCost(ViewCell *root, ViewCell *candidate)
|
---|
[703] | 833 | {
|
---|
[704] | 834 | return root->GetPvs().GetPvsHomogenity(candidate->GetPvs());
|
---|
| 835 | }
|
---|
[660] | 836 |
|
---|
[703] | 837 |
|
---|
[728] | 838 | // Returns index of the best view cells of the neighborhood
|
---|
[704] | 839 | int GetBestViewCellIdx(ViewCell *root, const ViewCellContainer &neighborhood)
|
---|
| 840 | {
|
---|
[705] | 841 | int bestViewCellIdx = 0;
|
---|
[703] | 842 |
|
---|
[704] | 843 | float mergeCost = Limits::Infinity;
|
---|
| 844 | int i = 0;
|
---|
[703] | 845 |
|
---|
[734] | 846 | ViewCellContainer::const_iterator vit, vit_end = neighborhood.end();
|
---|
[703] | 847 |
|
---|
[734] | 848 | for (vit = neighborhood.begin(); vit != vit_end; ++ vit, ++ i)
|
---|
[703] | 849 | {
|
---|
[734] | 850 | const float mc = EvalMergeCost(root, *vit);
|
---|
[705] | 851 |
|
---|
| 852 | if (mc < mergeCost)
|
---|
[704] | 853 | {
|
---|
| 854 | mergeCost = mc;
|
---|
| 855 | bestViewCellIdx = i;
|
---|
[703] | 856 | }
|
---|
[704] | 857 | }
|
---|
[703] | 858 |
|
---|
[704] | 859 | return bestViewCellIdx;
|
---|
| 860 | }
|
---|
[703] | 861 |
|
---|
| 862 |
|
---|
[728] | 863 | void ViewCellsManager::SetMaxFilterSize(const int size)
|
---|
| 864 | {
|
---|
| 865 | mMaxFilterSize = size;
|
---|
| 866 | }
|
---|
| 867 |
|
---|
| 868 |
|
---|
| 869 | float ViewCellsManager::EvalRenderCost(Intersectable *obj) const
|
---|
| 870 | {
|
---|
| 871 | switch (mRenderCostEvaluationType)
|
---|
| 872 | {
|
---|
| 873 | case PER_OBJECT:
|
---|
[752] | 874 | //cout << "perobject" << endl;
|
---|
| 875 | return 1.0f;
|
---|
[728] | 876 |
|
---|
| 877 | case PER_TRIANGLE:
|
---|
[735] | 878 | {cout << "pertriangle" << endl;
|
---|
[728] | 879 | // HACK
|
---|
| 880 | MeshInstance *mi = dynamic_cast<MeshInstance *>(obj);
|
---|
| 881 |
|
---|
| 882 | // HACK: assume meshes are triangles
|
---|
| 883 | if (mi->GetMesh())
|
---|
| 884 | {
|
---|
| 885 | return mi->GetMesh()->mFaces.size();
|
---|
| 886 | }
|
---|
| 887 | }
|
---|
| 888 | default:
|
---|
[752] | 889 | cout << "default" << endl;
|
---|
| 890 | return 1.0f;
|
---|
[728] | 891 | }
|
---|
| 892 |
|
---|
| 893 | // should not come here
|
---|
[752] | 894 | return 0.0f;
|
---|
[728] | 895 | }
|
---|
| 896 |
|
---|
| 897 |
|
---|
[704] | 898 | ViewCell *ViewCellsManager::ConstructLocalMergeTree(ViewCell *currentViewCell,
|
---|
| 899 | const ViewCellContainer &viewCells)
|
---|
| 900 | {
|
---|
| 901 | ViewCell *root = currentViewCell;
|
---|
| 902 | ViewCellContainer neighborhood = viewCells;
|
---|
[703] | 903 |
|
---|
[704] | 904 | ViewCellContainer::const_iterator it, it_end = neighborhood.end();
|
---|
[703] | 905 |
|
---|
[704] | 906 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 907 | //-- use priority queue to merge leaf pairs
|
---|
[703] | 908 |
|
---|
[705] | 909 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
[704] | 910 | //const float maxAvgCost = 350;
|
---|
| 911 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[703] | 912 | {
|
---|
[704] | 913 | const int bestViewCellIdx = GetBestViewCellIdx(root, neighborhood);
|
---|
[703] | 914 |
|
---|
[704] | 915 | ViewCell *bestViewCell = neighborhood[bestViewCellIdx];
|
---|
[706] | 916 |
|
---|
[704] | 917 | // remove from vector
|
---|
| 918 | swap(neighborhood[bestViewCellIdx], neighborhood.back());
|
---|
| 919 | neighborhood.pop_back();
|
---|
[705] | 920 |
|
---|
[713] | 921 | // cout << "vc idx: " << bestViewCellIdx << endl;
|
---|
[704] | 922 | if (!bestViewCell || !root)
|
---|
| 923 | cout << "warning!!" << endl;
|
---|
[705] | 924 |
|
---|
[704] | 925 | // create new root of the hierarchy
|
---|
| 926 | root = MergeViewCells(root, bestViewCell);
|
---|
[703] | 927 | }
|
---|
| 928 |
|
---|
[704] | 929 | return root;
|
---|
[703] | 930 | }
|
---|
| 931 |
|
---|
[704] | 932 |
|
---|
[713] | 933 | struct SortableViewCellEntry {
|
---|
| 934 |
|
---|
| 935 | SortableViewCellEntry() {}
|
---|
| 936 | SortableViewCellEntry(const float v, ViewCell *cell):mValue(v), mViewCell(cell) {}
|
---|
| 937 |
|
---|
| 938 | float mValue;
|
---|
| 939 | ViewCell *mViewCell;
|
---|
| 940 |
|
---|
| 941 | friend bool operator<(const SortableViewCellEntry &a, const SortableViewCellEntry &b) {
|
---|
| 942 | return a.mValue < b.mValue;
|
---|
| 943 | }
|
---|
| 944 | };
|
---|
| 945 |
|
---|
| 946 | ViewCell *
|
---|
| 947 | ViewCellsManager::ConstructLocalMergeTree2(ViewCell *currentViewCell,
|
---|
| 948 | const ViewCellContainer &viewCells)
|
---|
| 949 | {
|
---|
| 950 |
|
---|
| 951 | vector<SortableViewCellEntry> neighborhood(viewCells.size());
|
---|
| 952 | int i, j;
|
---|
| 953 | for (i = 0, j = 0; i < viewCells.size(); i++) {
|
---|
| 954 | if (viewCells[i] != currentViewCell)
|
---|
| 955 | neighborhood[j++] = SortableViewCellEntry(
|
---|
| 956 | EvalMergeCost(currentViewCell, viewCells[i]),
|
---|
| 957 | viewCells[i]);
|
---|
| 958 | }
|
---|
| 959 | neighborhood.resize(j);
|
---|
| 960 |
|
---|
| 961 | sort(neighborhood.begin(), neighborhood.end());
|
---|
| 962 |
|
---|
| 963 | ViewCell *root = currentViewCell;
|
---|
| 964 |
|
---|
| 965 | vector<SortableViewCellEntry>::const_iterator it, it_end = neighborhood.end();
|
---|
| 966 |
|
---|
| 967 | const int n = min(mMaxFilterSize, (int)neighborhood.size());
|
---|
| 968 | //-- use priority queue to merge leaf pairs
|
---|
| 969 |
|
---|
| 970 | //cout << "neighborhood: " << neighborhood.size() << endl;
|
---|
| 971 | for (int nMergedViewCells = 0; nMergedViewCells < n; ++ nMergedViewCells)
|
---|
[728] | 972 | {
|
---|
[713] | 973 | ViewCell *bestViewCell = neighborhood[nMergedViewCells].mViewCell;
|
---|
| 974 | //cout <<nMergedViewCells<<":"<<"homogenity=" <<neighborhood[nMergedViewCells].mValue<<endl;
|
---|
| 975 | // create new root of the hierarchy
|
---|
| 976 | root = MergeViewCells(root, bestViewCell);
|
---|
| 977 | // set negative cost so that this view cell gets deleted
|
---|
| 978 | root->SetMergeCost(-1.0f);
|
---|
[728] | 979 | }
|
---|
[713] | 980 |
|
---|
| 981 | return root;
|
---|
| 982 | }
|
---|
| 983 |
|
---|
| 984 | void
|
---|
| 985 | ViewCellsManager::DeleteLocalMergeTree(ViewCell *vc
|
---|
| 986 | ) const
|
---|
| 987 | {
|
---|
| 988 | if (!vc->IsLeaf() && vc->GetMergeCost() < 0.0f) {
|
---|
| 989 | ViewCellInterior *vci = (ViewCellInterior *) vc;
|
---|
| 990 | ViewCellContainer::const_iterator it, it_end = vci->mChildren.end();
|
---|
| 991 |
|
---|
| 992 | for (it = vci->mChildren.begin(); it != it_end; ++ it)
|
---|
| 993 | DeleteLocalMergeTree(*it);
|
---|
| 994 | vci->mChildren.clear();
|
---|
| 995 | delete vci;
|
---|
| 996 | }
|
---|
| 997 | }
|
---|
| 998 |
|
---|
[564] | 999 | bool ViewCellsManager::CheckValidity(ViewCell *vc,
|
---|
| 1000 | int minPvsSize,
|
---|
[562] | 1001 | int maxPvsSize) const
|
---|
[547] | 1002 | {
|
---|
[569] | 1003 |
|
---|
[710] | 1004 | if ((vc->GetPvs().GetSize() > maxPvsSize) ||
|
---|
| 1005 | (vc->GetPvs().GetSize() < minPvsSize))
|
---|
[564] | 1006 | {
|
---|
[710] | 1007 | return false;
|
---|
[561] | 1008 | }
|
---|
[570] | 1009 |
|
---|
[710] | 1010 | return true;
|
---|
[547] | 1011 | }
|
---|
| 1012 |
|
---|
| 1013 |
|
---|
[710] | 1014 | bool ViewCellsManager::EqualToSpatialNode(ViewCell *viewCell) const
|
---|
| 1015 | {
|
---|
| 1016 | return false;
|
---|
| 1017 | }
|
---|
| 1018 |
|
---|
| 1019 | int ViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box,
|
---|
| 1020 | ViewCellContainer &viewCells) const
|
---|
| 1021 | {
|
---|
| 1022 | return 0;
|
---|
| 1023 | };
|
---|
| 1024 |
|
---|
[697] | 1025 | AxisAlignedBox3 ViewCellsManager::GetFilterBBox(const Vector3 &viewPoint,
|
---|
| 1026 | const float width) const
|
---|
| 1027 | {
|
---|
[746] | 1028 | float w = Magnitude(mViewSpaceBox.Size())*width;
|
---|
| 1029 | Vector3 min = viewPoint - w * 0.5f;
|
---|
| 1030 | Vector3 max = viewPoint + w * 0.5f;
|
---|
| 1031 |
|
---|
| 1032 | return AxisAlignedBox3(min, max);
|
---|
[697] | 1033 | }
|
---|
| 1034 |
|
---|
| 1035 |
|
---|
| 1036 | void ViewCellsManager::GetPrVS(const Vector3 &viewPoint, PrVs &prvs)
|
---|
| 1037 | {
|
---|
[746] | 1038 | const AxisAlignedBox3 box = GetFilterBBox(viewPoint, mFilterWidth);
|
---|
| 1039 |
|
---|
| 1040 | ViewCell *currentViewCell = GetViewCell(viewPoint);
|
---|
[697] | 1041 |
|
---|
[746] | 1042 | if (currentViewCell) {
|
---|
[697] | 1043 | ViewCellContainer viewCells;
|
---|
| 1044 | ComputeBoxIntersections(box, viewCells);
|
---|
[746] | 1045 |
|
---|
[713] | 1046 | ViewCell *root = ConstructLocalMergeTree2(currentViewCell, viewCells);
|
---|
[704] | 1047 | prvs.mViewCell = root;
|
---|
[746] | 1048 | } else
|
---|
| 1049 | prvs.mViewCell = NULL;
|
---|
| 1050 | //prvs.mPvs = root->GetPvs();
|
---|
[697] | 1051 | }
|
---|
| 1052 |
|
---|
| 1053 |
|
---|
[581] | 1054 | bool ViewCellsManager::ViewCellsTreeConstructed() const
|
---|
| 1055 | {
|
---|
| 1056 | return mViewCellsTree->GetRoot();
|
---|
| 1057 | }
|
---|
| 1058 |
|
---|
| 1059 |
|
---|
[564] | 1060 | void ViewCellsManager::SetValidity(ViewCell *vc,
|
---|
| 1061 | int minPvs,
|
---|
[562] | 1062 | int maxPvs) const
|
---|
| 1063 | {
|
---|
| 1064 | vc->SetValid(CheckValidity(vc, minPvs, maxPvs));
|
---|
| 1065 | }
|
---|
| 1066 |
|
---|
[577] | 1067 |
|
---|
[569] | 1068 | void
|
---|
| 1069 | ViewCellsManager::SetValidity(
|
---|
[570] | 1070 | int minPvsSize,
|
---|
[569] | 1071 | int maxPvsSize) const
|
---|
| 1072 | {
|
---|
| 1073 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[570] | 1074 |
|
---|
[569] | 1075 | for (it = mViewCells.begin(); it != it_end; ++ it) {
|
---|
| 1076 | SetValidity(*it, minPvsSize, maxPvsSize);
|
---|
| 1077 | }
|
---|
| 1078 | }
|
---|
[562] | 1079 |
|
---|
[569] | 1080 | void
|
---|
| 1081 | ViewCellsManager::SetValidityPercentage(
|
---|
| 1082 | const float minValid,
|
---|
| 1083 | const float maxValid
|
---|
| 1084 | )
|
---|
| 1085 | {
|
---|
| 1086 | sort(mViewCells.begin(), mViewCells.end(), ViewCell::SmallerPvs);
|
---|
[570] | 1087 |
|
---|
[569] | 1088 | int start = mViewCells.size()*minValid;
|
---|
| 1089 | int end = mViewCells.size()*maxValid;
|
---|
[570] | 1090 |
|
---|
[569] | 1091 | for (int i=0; i < mViewCells.size(); i++)
|
---|
| 1092 | mViewCells[i]->SetValid(i >= start && i <= end);
|
---|
| 1093 | }
|
---|
| 1094 |
|
---|
| 1095 | int
|
---|
| 1096 | ViewCellsManager::CountValidViewcells() const
|
---|
| 1097 | {
|
---|
| 1098 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1099 | int valid = 0;
|
---|
| 1100 | for (it = mViewCells.begin(); it != it_end; ++ it) {
|
---|
| 1101 | if ((*it)->GetValid())
|
---|
[706] | 1102 | valid ++;
|
---|
[569] | 1103 | }
|
---|
| 1104 | return valid;
|
---|
| 1105 | }
|
---|
| 1106 |
|
---|
[577] | 1107 |
|
---|
| 1108 | bool ViewCellsManager::LoadViewCellsGeometry(const string filename)
|
---|
[440] | 1109 | {
|
---|
| 1110 | X3dParser parser;
|
---|
[503] | 1111 |
|
---|
[440] | 1112 | environment->GetFloatValue("ViewCells.height", parser.mViewCellHeight);
|
---|
[503] | 1113 |
|
---|
[440] | 1114 | bool success = parser.ParseFile(filename, *this);
|
---|
| 1115 | Debug << (int)mViewCells.size() << " view cells loaded" << endl;
|
---|
| 1116 |
|
---|
| 1117 | return success;
|
---|
| 1118 | }
|
---|
| 1119 |
|
---|
[485] | 1120 |
|
---|
[487] | 1121 | bool ViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 1122 | {
|
---|
[542] | 1123 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[487] | 1124 |
|
---|
| 1125 | return true;
|
---|
| 1126 | }
|
---|
| 1127 |
|
---|
| 1128 |
|
---|
[557] | 1129 | float ViewCellsManager::GetViewSpaceVolume()
|
---|
| 1130 | {
|
---|
[610] | 1131 | return mViewSpaceBox.GetVolume() * (2.0f * sqr((float)M_PI));
|
---|
[557] | 1132 | }
|
---|
| 1133 |
|
---|
| 1134 |
|
---|
[490] | 1135 | bool ViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 1136 | {
|
---|
[569] | 1137 | if (!ViewCellsConstructed())
|
---|
[542] | 1138 | return mViewSpaceBox.IsInside(viewPoint);
|
---|
[569] | 1139 | else {
|
---|
| 1140 | if (!mViewSpaceBox.IsInside(viewPoint))
|
---|
| 1141 | return false;
|
---|
| 1142 | ViewCell *viewcell = GetViewCell(viewPoint);
|
---|
| 1143 | if (!viewcell || !viewcell->GetValid())
|
---|
| 1144 | return false;
|
---|
| 1145 | }
|
---|
| 1146 | return true;
|
---|
[490] | 1147 | }
|
---|
| 1148 |
|
---|
[501] | 1149 |
|
---|
[563] | 1150 | float
|
---|
| 1151 | ViewCellsManager::ComputeSampleContributions(const VssRayContainer &rays,
|
---|
[574] | 1152 | const bool addRays,
|
---|
| 1153 | const bool storeViewCells
|
---|
[563] | 1154 | )
|
---|
[440] | 1155 | {
|
---|
[563] | 1156 | // view cells not yet constructed
|
---|
| 1157 | if (!ViewCellsConstructed())
|
---|
| 1158 | return 0.0f;
|
---|
[564] | 1159 |
|
---|
[563] | 1160 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[503] | 1161 |
|
---|
[563] | 1162 | float sum = 0.0f;
|
---|
[664] | 1163 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 1164 | {
|
---|
| 1165 | sum += ComputeSampleContributions(*(*it), addRays, storeViewCells);
|
---|
| 1166 | //ComputeSampleContributions(*(*it), addRays);
|
---|
| 1167 | // sum += (*it)->mPvsContribution;
|
---|
[563] | 1168 | }
|
---|
[664] | 1169 |
|
---|
[563] | 1170 | return sum;
|
---|
[440] | 1171 | }
|
---|
| 1172 |
|
---|
[485] | 1173 |
|
---|
[479] | 1174 | void ViewCellsManager::EvaluateViewCellsStats()
|
---|
| 1175 | {
|
---|
[660] | 1176 | mCurrentViewCellsStats.Reset();
|
---|
[479] | 1177 |
|
---|
| 1178 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1179 |
|
---|
| 1180 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[487] | 1181 | {
|
---|
[660] | 1182 | mViewCellsTree->UpdateViewCellsStats(*it, mCurrentViewCellsStats);
|
---|
[487] | 1183 | }
|
---|
[479] | 1184 | }
|
---|
| 1185 |
|
---|
[485] | 1186 |
|
---|
[580] | 1187 | void ViewCellsManager::EvaluateRenderStatistics(float &totalRenderCost,
|
---|
[579] | 1188 | float &expectedRenderCost,
|
---|
[580] | 1189 | float &deviation,
|
---|
| 1190 | float &variance,
|
---|
| 1191 | int &totalPvs,
|
---|
| 1192 | float &avgRenderCost)
|
---|
[579] | 1193 | {
|
---|
| 1194 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1195 |
|
---|
[580] | 1196 |
|
---|
[579] | 1197 | //-- compute expected value
|
---|
| 1198 |
|
---|
| 1199 | totalRenderCost = 0;
|
---|
[580] | 1200 | totalPvs = 0;
|
---|
[579] | 1201 |
|
---|
| 1202 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1203 | {
|
---|
| 1204 | ViewCell *vc = *it;
|
---|
| 1205 | totalRenderCost += vc->GetPvs().GetSize() * vc->GetVolume();
|
---|
[580] | 1206 | totalPvs += (int)vc->GetPvs().GetSize();
|
---|
[579] | 1207 | }
|
---|
| 1208 |
|
---|
[580] | 1209 | // normalize with view space box
|
---|
| 1210 | totalRenderCost /= mViewSpaceBox.GetVolume();
|
---|
[579] | 1211 | expectedRenderCost = totalRenderCost / (float)mViewCells.size();
|
---|
[580] | 1212 | avgRenderCost = totalPvs / (float)mViewCells.size();
|
---|
[579] | 1213 |
|
---|
| 1214 |
|
---|
[580] | 1215 | //-- compute standard defiation
|
---|
[579] | 1216 | variance = 0;
|
---|
[580] | 1217 | deviation = 0;
|
---|
[579] | 1218 |
|
---|
| 1219 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1220 | {
|
---|
| 1221 | ViewCell *vc = *it;
|
---|
| 1222 |
|
---|
| 1223 | float renderCost = vc->GetPvs().GetSize() * vc->GetVolume();
|
---|
[580] | 1224 | float dev;
|
---|
[579] | 1225 |
|
---|
[580] | 1226 | if (1)
|
---|
| 1227 | dev = fabs(avgRenderCost - (float)vc->GetPvs().GetSize());
|
---|
| 1228 | else
|
---|
| 1229 | dev = fabs(expectedRenderCost - renderCost);
|
---|
[579] | 1230 |
|
---|
[580] | 1231 | deviation += dev;
|
---|
| 1232 | variance += dev * dev;
|
---|
[579] | 1233 | }
|
---|
[580] | 1234 |
|
---|
[579] | 1235 | variance /= (float)mViewCells.size();
|
---|
[580] | 1236 | deviation /= (float)mViewCells.size();
|
---|
[579] | 1237 | }
|
---|
| 1238 |
|
---|
| 1239 |
|
---|
| 1240 |
|
---|
[440] | 1241 | void ViewCellsManager::AddViewCell(ViewCell *viewCell)
|
---|
| 1242 | {
|
---|
| 1243 | mViewCells.push_back(viewCell);
|
---|
| 1244 | }
|
---|
| 1245 |
|
---|
[485] | 1246 |
|
---|
[478] | 1247 | float ViewCellsManager::GetArea(ViewCell *viewCell) const
|
---|
| 1248 | {
|
---|
| 1249 | return viewCell->GetArea();
|
---|
| 1250 | }
|
---|
| 1251 |
|
---|
| 1252 |
|
---|
| 1253 | float ViewCellsManager::GetVolume(ViewCell *viewCell) const
|
---|
| 1254 | {
|
---|
| 1255 | return viewCell->GetVolume();
|
---|
| 1256 | }
|
---|
| 1257 |
|
---|
[485] | 1258 |
|
---|
[503] | 1259 | void ViewCellsManager::DeriveViewCells(const ObjectContainer &objects,
|
---|
| 1260 | ViewCellContainer &viewCells,
|
---|
[440] | 1261 | const int maxViewCells) const
|
---|
| 1262 | {
|
---|
| 1263 | // maximal max viewcells
|
---|
[503] | 1264 | int limit = maxViewCells > 0 ?
|
---|
[440] | 1265 | Min((int)objects.size(), maxViewCells) : (int)objects.size();
|
---|
| 1266 |
|
---|
| 1267 | for (int i = 0; i < limit; ++ i)
|
---|
| 1268 | {
|
---|
| 1269 | Intersectable *object = objects[i];
|
---|
[503] | 1270 |
|
---|
[440] | 1271 | // extract the mesh instances
|
---|
| 1272 | if (object->Type() == Intersectable::MESH_INSTANCE)
|
---|
| 1273 | {
|
---|
| 1274 | MeshInstance *inst = dynamic_cast<MeshInstance *>(object);
|
---|
| 1275 |
|
---|
| 1276 | ViewCell *viewCell = GenerateViewCell(inst->GetMesh());
|
---|
| 1277 | viewCells.push_back(viewCell);
|
---|
| 1278 | }
|
---|
| 1279 | //TODO: transformed meshes
|
---|
| 1280 | }
|
---|
| 1281 | }
|
---|
| 1282 |
|
---|
[485] | 1283 |
|
---|
[503] | 1284 | ViewCell *ViewCellsManager::ExtrudeViewCell(const Triangle3 &baseTri,
|
---|
[440] | 1285 | const float height) const
|
---|
| 1286 | {
|
---|
| 1287 | // one mesh per view cell
|
---|
| 1288 | Mesh *mesh = new Mesh();
|
---|
[503] | 1289 |
|
---|
[440] | 1290 | //-- construct prism
|
---|
| 1291 |
|
---|
[503] | 1292 | // bottom
|
---|
[440] | 1293 | mesh->mFaces.push_back(new Face(2,1,0));
|
---|
| 1294 | // top
|
---|
| 1295 | mesh->mFaces.push_back(new Face(3,4,5));
|
---|
| 1296 | // sides
|
---|
| 1297 | mesh->mFaces.push_back(new Face(1, 4, 3, 0));
|
---|
| 1298 | mesh->mFaces.push_back(new Face(2, 5, 4, 1));
|
---|
| 1299 | mesh->mFaces.push_back(new Face(3, 5, 2, 0));
|
---|
| 1300 |
|
---|
| 1301 | //--- extrude new vertices for top of prism
|
---|
| 1302 | Vector3 triNorm = baseTri.GetNormal();
|
---|
| 1303 |
|
---|
[503] | 1304 | Triangle3 topTri;
|
---|
[440] | 1305 |
|
---|
| 1306 | // add base vertices and calculate top vertices
|
---|
| 1307 | for (int i = 0; i < 3; ++ i)
|
---|
| 1308 | mesh->mVertices.push_back(baseTri.mVertices[i]);
|
---|
[503] | 1309 |
|
---|
| 1310 | // add top vertices
|
---|
[440] | 1311 | for (int i = 0; i < 3; ++ i)
|
---|
| 1312 | mesh->mVertices.push_back(baseTri.mVertices[i] + height * triNorm);
|
---|
[503] | 1313 |
|
---|
[440] | 1314 | mesh->Preprocess();
|
---|
| 1315 |
|
---|
| 1316 | return GenerateViewCell(mesh);
|
---|
| 1317 | }
|
---|
| 1318 |
|
---|
[485] | 1319 |
|
---|
[551] | 1320 | void ViewCellsManager::FinalizeViewCells(const bool createMesh)
|
---|
| 1321 | {
|
---|
| 1322 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[693] | 1323 |
|
---|
| 1324 | // volume and area of the view cells are recomputed and a view cell mesh is created
|
---|
[551] | 1325 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1326 | {
|
---|
| 1327 | Finalize(*it, createMesh);
|
---|
| 1328 | }
|
---|
[555] | 1329 |
|
---|
| 1330 | mTotalAreaValid = false;
|
---|
[551] | 1331 | }
|
---|
| 1332 |
|
---|
| 1333 |
|
---|
| 1334 | void ViewCellsManager::Finalize(ViewCell *viewCell, const bool createMesh)
|
---|
| 1335 | {
|
---|
| 1336 | // implemented in subclasses
|
---|
| 1337 | }
|
---|
| 1338 |
|
---|
[752] | 1339 | // fast way of merging 2 view cells
|
---|
[582] | 1340 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCell *left, ViewCell *right) const
|
---|
[440] | 1341 | {
|
---|
[580] | 1342 | // generate parent view cell
|
---|
[752] | 1343 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[710] | 1344 |
|
---|
[752] | 1345 | vc->GetPvs().Clear();
|
---|
[610] | 1346 | vc->GetPvs() = left->GetPvs();
|
---|
[752] | 1347 |
|
---|
| 1348 | // merge pvs of right cell
|
---|
[610] | 1349 | vc->GetPvs().Merge(right->GetPvs());
|
---|
[440] | 1350 |
|
---|
[462] | 1351 | //-- merge ray sets
|
---|
[564] | 1352 | if (0)
|
---|
| 1353 | {
|
---|
[582] | 1354 | stable_sort(left->mPiercingRays.begin(), left->mPiercingRays.end());
|
---|
| 1355 | stable_sort(right->mPiercingRays.begin(), right->mPiercingRays.end());
|
---|
[440] | 1356 |
|
---|
[582] | 1357 | std::merge(left->mPiercingRays.begin(), left->mPiercingRays.end(),
|
---|
| 1358 | right->mPiercingRays.begin(), right->mPiercingRays.end(),
|
---|
[564] | 1359 | vc->mPiercingRays.begin());
|
---|
| 1360 | }
|
---|
[440] | 1361 |
|
---|
[710] | 1362 | // set only links to child (not from child to parent, maybe not wished!!)
|
---|
| 1363 | vc->mChildren.push_back(left);
|
---|
| 1364 | vc->mChildren.push_back(right);
|
---|
| 1365 |
|
---|
[752] | 1366 | // update pvs size
|
---|
| 1367 | vc->mPvsSize = vc->GetPvs().GetSize();
|
---|
| 1368 | vc->mPvsSizeValid = true;
|
---|
| 1369 |
|
---|
[440] | 1370 | return vc;
|
---|
| 1371 | }
|
---|
| 1372 |
|
---|
[485] | 1373 |
|
---|
[582] | 1374 | ViewCellInterior *ViewCellsManager::MergeViewCells(ViewCellContainer &children) const
|
---|
| 1375 | {
|
---|
[752] | 1376 | ViewCellInterior *vc = new ViewCellInterior();
|
---|
[582] | 1377 |
|
---|
| 1378 | ViewCellContainer::const_iterator it, it_end = children.end();
|
---|
| 1379 |
|
---|
| 1380 | for (it = children.begin(); it != it_end; ++ it)
|
---|
| 1381 | {
|
---|
| 1382 | // merge pvs
|
---|
[610] | 1383 | vc->GetPvs().Merge((*it)->GetPvs());
|
---|
[710] | 1384 | vc->mChildren.push_back(*it);
|
---|
[582] | 1385 | }
|
---|
| 1386 |
|
---|
| 1387 | return vc;
|
---|
| 1388 | }
|
---|
| 1389 |
|
---|
| 1390 |
|
---|
[480] | 1391 | void ViewCellsManager::SetRenderer(Renderer *renderer)
|
---|
| 1392 | {
|
---|
| 1393 | mRenderer = renderer;
|
---|
| 1394 | }
|
---|
[441] | 1395 |
|
---|
[485] | 1396 |
|
---|
[580] | 1397 | ViewCellsTree *ViewCellsManager::GetViewCellsTree()
|
---|
[440] | 1398 | {
|
---|
[580] | 1399 | return mViewCellsTree;
|
---|
[440] | 1400 | }
|
---|
| 1401 |
|
---|
| 1402 |
|
---|
| 1403 | void ViewCellsManager::SetVisualizationSamples(const int visSamples)
|
---|
| 1404 | {
|
---|
[444] | 1405 | mVisualizationSamples = visSamples;
|
---|
[440] | 1406 | }
|
---|
| 1407 |
|
---|
[485] | 1408 |
|
---|
[440] | 1409 | void ViewCellsManager::SetConstructionSamples(const int constructionSamples)
|
---|
| 1410 | {
|
---|
| 1411 | mConstructionSamples = constructionSamples;
|
---|
| 1412 | }
|
---|
| 1413 |
|
---|
[485] | 1414 |
|
---|
[574] | 1415 | void ViewCellsManager::SetInitialSamples(const int initialSamples)
|
---|
| 1416 | {
|
---|
| 1417 | mInitialSamples = initialSamples;
|
---|
| 1418 | }
|
---|
| 1419 |
|
---|
| 1420 |
|
---|
[440] | 1421 | void ViewCellsManager::SetPostProcessSamples(const int postProcessSamples)
|
---|
| 1422 | {
|
---|
| 1423 | mPostProcessSamples = postProcessSamples;
|
---|
| 1424 | }
|
---|
| 1425 |
|
---|
[485] | 1426 |
|
---|
[440] | 1427 | int ViewCellsManager::GetVisualizationSamples() const
|
---|
| 1428 | {
|
---|
| 1429 | return mVisualizationSamples;
|
---|
| 1430 | }
|
---|
| 1431 |
|
---|
[485] | 1432 |
|
---|
[440] | 1433 | int ViewCellsManager::GetConstructionSamples() const
|
---|
| 1434 | {
|
---|
| 1435 | return mConstructionSamples;
|
---|
| 1436 | }
|
---|
| 1437 |
|
---|
[485] | 1438 |
|
---|
[440] | 1439 | int ViewCellsManager::GetPostProcessSamples() const
|
---|
| 1440 | {
|
---|
| 1441 | return mPostProcessSamples;
|
---|
| 1442 | }
|
---|
| 1443 |
|
---|
[485] | 1444 |
|
---|
[719] | 1445 | void ViewCellsManager::UpdatePvs()
|
---|
| 1446 | {
|
---|
[720] | 1447 | if (mViewCellPvsIsUpdated || !ViewCellsTreeConstructed())
|
---|
[719] | 1448 | return;
|
---|
| 1449 |
|
---|
| 1450 | mViewCellPvsIsUpdated = true;
|
---|
| 1451 |
|
---|
| 1452 | ViewCellContainer leaves;
|
---|
| 1453 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 1454 |
|
---|
| 1455 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 1456 |
|
---|
| 1457 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 1458 | {
|
---|
| 1459 | mViewCellsTree->PropagatePvs(*it);
|
---|
| 1460 | }
|
---|
| 1461 | }
|
---|
| 1462 |
|
---|
| 1463 |
|
---|
[485] | 1464 | void ViewCellsManager::GetPvsStatistics(PvsStatistics &stat)
|
---|
[467] | 1465 | {
|
---|
[719] | 1466 | // update pvs of view cells tree if necessary
|
---|
| 1467 | UpdatePvs();
|
---|
[467] | 1468 |
|
---|
[719] | 1469 | ViewCellContainer::const_iterator it = mViewCells.begin();
|
---|
| 1470 |
|
---|
| 1471 | stat.viewcells = 0;
|
---|
| 1472 | stat.minPvs = 100000000;
|
---|
| 1473 | stat.maxPvs = 0;
|
---|
| 1474 | stat.avgPvs = 0.0f;
|
---|
| 1475 |
|
---|
| 1476 | for (; it != mViewCells.end(); ++ it)
|
---|
| 1477 | {
|
---|
| 1478 | ViewCell *viewcell = *it;
|
---|
| 1479 |
|
---|
| 1480 | const int pvsSize = mViewCellsTree->GetPvsSize(viewcell);
|
---|
| 1481 |
|
---|
| 1482 | if (pvsSize < stat.minPvs)
|
---|
| 1483 | stat.minPvs = pvsSize;
|
---|
| 1484 | if (pvsSize > stat.maxPvs)
|
---|
| 1485 | stat.maxPvs = pvsSize;
|
---|
| 1486 | stat.avgPvs += pvsSize;
|
---|
| 1487 |
|
---|
| 1488 | ++ stat.viewcells;
|
---|
| 1489 | }
|
---|
| 1490 |
|
---|
| 1491 | if (stat.viewcells)
|
---|
| 1492 | stat.avgPvs/=stat.viewcells;
|
---|
[467] | 1493 | }
|
---|
| 1494 |
|
---|
[485] | 1495 |
|
---|
[480] | 1496 | void ViewCellsManager::PrintPvsStatistics(ostream &s)
|
---|
[467] | 1497 | {
|
---|
| 1498 | s<<"############# Viewcell PVS STAT ##################\n";
|
---|
| 1499 | PvsStatistics pvsStat;
|
---|
| 1500 | GetPvsStatistics(pvsStat);
|
---|
| 1501 | s<<"#AVG_PVS\n"<<pvsStat.avgPvs<<endl;
|
---|
| 1502 | s<<"#MAX_PVS\n"<<pvsStat.maxPvs<<endl;
|
---|
| 1503 | s<<"#MIN_PVS\n"<<pvsStat.minPvs<<endl;
|
---|
| 1504 | }
|
---|
| 1505 |
|
---|
[485] | 1506 |
|
---|
[532] | 1507 | int ViewCellsManager::CastBeam(Beam &beam)
|
---|
| 1508 | {
|
---|
| 1509 | return 0;
|
---|
| 1510 | }
|
---|
| 1511 |
|
---|
[547] | 1512 |
|
---|
[468] | 1513 | ViewCellContainer &ViewCellsManager::GetViewCells()
|
---|
| 1514 | {
|
---|
| 1515 | return mViewCells;
|
---|
| 1516 | }
|
---|
| 1517 |
|
---|
[485] | 1518 |
|
---|
[487] | 1519 | void ViewCellsManager::SetViewSpaceBox(const AxisAlignedBox3 &box)
|
---|
| 1520 | {
|
---|
[542] | 1521 | mViewSpaceBox = box;
|
---|
[591] | 1522 |
|
---|
[660] | 1523 | CreateClipPlane();
|
---|
[591] | 1524 |
|
---|
[577] | 1525 | mTotalAreaValid = false;
|
---|
[487] | 1526 | }
|
---|
| 1527 |
|
---|
| 1528 |
|
---|
[660] | 1529 | void ViewCellsManager::CreateClipPlane()
|
---|
[591] | 1530 | {
|
---|
| 1531 | int axis = 0;
|
---|
[667] | 1532 | float pos;
|
---|
[591] | 1533 |
|
---|
[667] | 1534 | environment->GetFloatValue("ViewCells.Visualization.clipPlanePos", pos);
|
---|
[591] | 1535 |
|
---|
[667] | 1536 | Vector3 point = mViewSpaceBox.Min() + mViewSpaceBox.Size() * pos;
|
---|
| 1537 |
|
---|
[660] | 1538 | if (mUseClipPlaneForViz)
|
---|
| 1539 | environment->GetIntValue("ViewCells.Visualization.clipPlaneAxis", axis);
|
---|
[591] | 1540 |
|
---|
| 1541 | Vector3 normal(0,0,0);
|
---|
| 1542 | normal[axis] = 1;
|
---|
| 1543 |
|
---|
[660] | 1544 | mClipPlane = Plane3(normal, point);
|
---|
[591] | 1545 | }
|
---|
| 1546 |
|
---|
| 1547 |
|
---|
[519] | 1548 | AxisAlignedBox3 ViewCellsManager::GetViewSpaceBox() const
|
---|
| 1549 | {
|
---|
[542] | 1550 | return mViewSpaceBox;
|
---|
[519] | 1551 | }
|
---|
| 1552 |
|
---|
| 1553 |
|
---|
[480] | 1554 | void ViewCellsManager::ResetViewCells()
|
---|
| 1555 | {
|
---|
[720] | 1556 | // recollect view cells
|
---|
[480] | 1557 | mViewCells.clear();
|
---|
| 1558 | CollectViewCells();
|
---|
[590] | 1559 |
|
---|
[720] | 1560 |
|
---|
| 1561 | // stats are computed once more
|
---|
[660] | 1562 | mCurrentViewCellsStats.Reset();
|
---|
[480] | 1563 | EvaluateViewCellsStats();
|
---|
[590] | 1564 |
|
---|
[520] | 1565 | // has to be recomputed
|
---|
[480] | 1566 | mTotalAreaValid = false;
|
---|
| 1567 | }
|
---|
| 1568 |
|
---|
[485] | 1569 |
|
---|
[547] | 1570 | int ViewCellsManager::GetMaxPvsSize() const
|
---|
| 1571 | {
|
---|
| 1572 | return mMaxPvsSize;
|
---|
| 1573 | }
|
---|
| 1574 |
|
---|
[590] | 1575 |
|
---|
[563] | 1576 | void
|
---|
| 1577 | ViewCellsManager::AddSampleContributions(const VssRayContainer &rays)
|
---|
| 1578 | {
|
---|
| 1579 | if (!ViewCellsConstructed())
|
---|
| 1580 | return;
|
---|
[564] | 1581 |
|
---|
[563] | 1582 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[564] | 1583 |
|
---|
[563] | 1584 | for (it = rays.begin(); it != it_end; ++ it) {
|
---|
| 1585 | AddSampleContributions(*(*it));
|
---|
| 1586 | }
|
---|
| 1587 | }
|
---|
[547] | 1588 |
|
---|
[581] | 1589 |
|
---|
[562] | 1590 | int ViewCellsManager::GetMinPvsSize() const
|
---|
| 1591 | {
|
---|
| 1592 | return mMinPvsSize;
|
---|
| 1593 | }
|
---|
| 1594 |
|
---|
| 1595 |
|
---|
| 1596 |
|
---|
[561] | 1597 | float ViewCellsManager::GetMaxPvsRatio() const
|
---|
| 1598 | {
|
---|
| 1599 | return mMaxPvsRatio;
|
---|
| 1600 | }
|
---|
| 1601 |
|
---|
| 1602 |
|
---|
[563] | 1603 | void
|
---|
| 1604 | ViewCellsManager::AddSampleContributions(VssRay &ray)
|
---|
[468] | 1605 | {
|
---|
[563] | 1606 | // assumes viewcells have been stored...
|
---|
| 1607 | ViewCellContainer *viewcells = &ray.mViewCells;
|
---|
| 1608 | ViewCellContainer::const_iterator it;
|
---|
| 1609 | for (it = viewcells->begin(); it != viewcells->end(); ++it) {
|
---|
| 1610 | ViewCell *viewcell = *it;
|
---|
[569] | 1611 | if (viewcell->GetValid()) {
|
---|
| 1612 | // if ray not outside of view space
|
---|
| 1613 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
| 1614 | }
|
---|
[563] | 1615 | }
|
---|
| 1616 | }
|
---|
[503] | 1617 |
|
---|
[574] | 1618 |
|
---|
[570] | 1619 | float ViewCellsManager::ComputeSampleContributions(VssRay &ray,
|
---|
[574] | 1620 | const bool addRays,
|
---|
| 1621 | const bool storeViewCells)
|
---|
[563] | 1622 | {
|
---|
[570] | 1623 | ViewCellContainer viewcells;
|
---|
[564] | 1624 |
|
---|
[570] | 1625 | ray.mPvsContribution = 0;
|
---|
| 1626 | ray.mRelativePvsContribution = 0.0f;
|
---|
[485] | 1627 |
|
---|
[570] | 1628 | static Ray hray;
|
---|
[564] | 1629 | hray.Init(ray);
|
---|
| 1630 | //hray.mFlags |= Ray::CULL_BACKFACES;
|
---|
| 1631 | //Ray hray(ray);
|
---|
| 1632 |
|
---|
| 1633 | float tmin = 0, tmax = 1.0;
|
---|
| 1634 |
|
---|
| 1635 | if (!GetViewSpaceBox().GetRaySegment(hray, tmin, tmax) || (tmin > tmax))
|
---|
[565] | 1636 | return 0;
|
---|
[564] | 1637 |
|
---|
| 1638 | Vector3 origin = hray.Extrap(tmin);
|
---|
| 1639 | Vector3 termination = hray.Extrap(tmax);
|
---|
| 1640 |
|
---|
| 1641 | CastLineSegment(origin, termination, viewcells);
|
---|
[664] | 1642 |
|
---|
[570] | 1643 | // copy viewcells memory efficiently
|
---|
[574] | 1644 | //const bool storeViewcells = !addRays;
|
---|
[564] | 1645 |
|
---|
[574] | 1646 | if (storeViewCells)
|
---|
[570] | 1647 | {
|
---|
| 1648 | ray.mViewCells.reserve(viewcells.size());
|
---|
| 1649 | ray.mViewCells = viewcells;
|
---|
| 1650 | }
|
---|
[564] | 1651 |
|
---|
[570] | 1652 | ViewCellContainer::const_iterator it = viewcells.begin();
|
---|
[564] | 1653 |
|
---|
[664] | 1654 | for (; it != viewcells.end(); ++ it)
|
---|
| 1655 | {
|
---|
| 1656 | ViewCell *viewcell = *it;
|
---|
[694] | 1657 |
|
---|
[708] | 1658 | if (viewcell->GetValid())
|
---|
[664] | 1659 | {
|
---|
[694] | 1660 | // HACK
|
---|
[706] | 1661 | #if TEST_EMPTY_VIEW_CELLS
|
---|
[694] | 1662 | for (int i = 0; i < mEmptyViewCells.size(); ++i)
|
---|
| 1663 | {
|
---|
| 1664 | if (viewcell == mEmptyViewCells[i])
|
---|
| 1665 | {
|
---|
| 1666 | viewcell->mPiercingRays.push_back(new Ray(ray));
|
---|
| 1667 | Debug << "empty view cell ray found: " << ray.mOriginObject << ", " << ray.mTerminationObject << endl;
|
---|
| 1668 | }
|
---|
| 1669 | }
|
---|
[706] | 1670 | #endif
|
---|
[664] | 1671 | // if ray not outside of view space
|
---|
| 1672 | float contribution;
|
---|
[666] | 1673 | if (ray.mTerminationObject &&
|
---|
| 1674 | viewcell->GetPvs().GetSampleContribution(ray.mTerminationObject,
|
---|
[664] | 1675 | ray.mPdf,
|
---|
| 1676 | contribution))
|
---|
| 1677 | {
|
---|
| 1678 | ++ ray.mPvsContribution;
|
---|
| 1679 | ray.mRelativePvsContribution += contribution;
|
---|
| 1680 | }
|
---|
[718] | 1681 |
|
---|
| 1682 | //for directional sampling it is important to count only contributions
|
---|
| 1683 | // made in one direction!!!
|
---|
| 1684 | // the other contributions of this sample will be counted for the oposite ray!
|
---|
| 1685 | #if 0
|
---|
[666] | 1686 | if (ray.mOriginObject &&
|
---|
| 1687 | viewcell->GetPvs().GetSampleContribution(ray.mOriginObject,
|
---|
| 1688 | ray.mPdf,
|
---|
| 1689 | contribution))
|
---|
| 1690 | {
|
---|
| 1691 | ++ ray.mPvsContribution;
|
---|
| 1692 | ray.mRelativePvsContribution += contribution;
|
---|
| 1693 | }
|
---|
[718] | 1694 | #endif
|
---|
[664] | 1695 | }
|
---|
[569] | 1696 | }
|
---|
[564] | 1697 |
|
---|
[664] | 1698 |
|
---|
| 1699 | if (addRays)
|
---|
| 1700 | {
|
---|
| 1701 | for (it = viewcells.begin(); it != viewcells.end(); ++ it)
|
---|
| 1702 | {
|
---|
| 1703 | ViewCell *viewcell = *it;
|
---|
| 1704 |
|
---|
[706] | 1705 | if (viewcell->GetValid())
|
---|
[664] | 1706 | {
|
---|
| 1707 | // if ray not outside of view space
|
---|
[666] | 1708 | if (ray.mTerminationObject)
|
---|
| 1709 | viewcell->GetPvs().AddSample(ray.mTerminationObject, ray.mPdf);
|
---|
[718] | 1710 |
|
---|
| 1711 | #if 0
|
---|
[666] | 1712 | if (ray.mOriginObject)
|
---|
| 1713 | viewcell->GetPvs().AddSample(ray.mOriginObject, ray.mPdf);
|
---|
[718] | 1714 | #endif
|
---|
[664] | 1715 | }
|
---|
| 1716 | }
|
---|
[563] | 1717 | }
|
---|
[570] | 1718 |
|
---|
| 1719 | return ray.mRelativePvsContribution;
|
---|
[468] | 1720 | }
|
---|
| 1721 |
|
---|
| 1722 |
|
---|
[469] | 1723 | void ViewCellsManager::GetRaySets(const VssRayContainer &sourceRays,
|
---|
[485] | 1724 | const int maxSize,
|
---|
[503] | 1725 | VssRayContainer &usedRays,
|
---|
[485] | 1726 | VssRayContainer *savedRays) const
|
---|
[469] | 1727 | {
|
---|
[485] | 1728 | const int limit = min(maxSize, (int)sourceRays.size());
|
---|
[473] | 1729 | const float prop = (float)limit / ((float)sourceRays.size() + Limits::Small);
|
---|
[469] | 1730 |
|
---|
[485] | 1731 | VssRayContainer::const_iterator it, it_end = sourceRays.end();
|
---|
[469] | 1732 | for (it = sourceRays.begin(); it != it_end; ++ it)
|
---|
| 1733 | {
|
---|
[473] | 1734 | if (Random(1.0f) < prop)
|
---|
[485] | 1735 | usedRays.push_back(*it);
|
---|
| 1736 | else if (savedRays)
|
---|
| 1737 | savedRays->push_back(*it);
|
---|
[469] | 1738 | }
|
---|
| 1739 | }
|
---|
| 1740 |
|
---|
[477] | 1741 |
|
---|
[728] | 1742 | float ViewCellsManager::GetRendercost(ViewCell *viewCell) const
|
---|
[605] | 1743 | {
|
---|
[728] | 1744 | return mViewCellsTree->GetPvsSize(viewCell);
|
---|
[605] | 1745 | }
|
---|
| 1746 |
|
---|
| 1747 |
|
---|
[477] | 1748 | float ViewCellsManager::GetAccVcArea()
|
---|
[470] | 1749 | {
|
---|
| 1750 | // if already computed
|
---|
| 1751 | if (mTotalAreaValid)
|
---|
[728] | 1752 | {
|
---|
[470] | 1753 | return mTotalArea;
|
---|
[728] | 1754 | }
|
---|
[470] | 1755 |
|
---|
| 1756 | mTotalArea = 0;
|
---|
| 1757 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1758 |
|
---|
| 1759 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
[480] | 1760 | {
|
---|
| 1761 | //Debug << "area: " << GetArea(*it);
|
---|
[470] | 1762 | mTotalArea += GetArea(*it);
|
---|
[480] | 1763 | }
|
---|
| 1764 |
|
---|
[470] | 1765 | mTotalAreaValid = true;
|
---|
| 1766 |
|
---|
| 1767 | return mTotalArea;
|
---|
| 1768 | }
|
---|
| 1769 |
|
---|
[482] | 1770 |
|
---|
[475] | 1771 | void ViewCellsManager::PrintStatistics(ostream &s) const
|
---|
| 1772 | {
|
---|
[660] | 1773 | s << mCurrentViewCellsStats << endl;
|
---|
[475] | 1774 | }
|
---|
| 1775 |
|
---|
[477] | 1776 |
|
---|
[508] | 1777 | void ViewCellsManager::CreateUniqueViewCellIds()
|
---|
[482] | 1778 | {
|
---|
[651] | 1779 | if (ViewCellsTreeConstructed())
|
---|
| 1780 | mViewCellsTree->CreateUniqueViewCellsIds();
|
---|
| 1781 | else
|
---|
| 1782 | for (int i = 0; i < (int)mViewCells.size(); ++ i)
|
---|
| 1783 | mViewCells[i]->SetId(i);
|
---|
[508] | 1784 | }
|
---|
| 1785 |
|
---|
| 1786 |
|
---|
| 1787 | void ViewCellsManager::ExportViewCellsForViz(Exporter *exporter) const
|
---|
| 1788 | {
|
---|
[482] | 1789 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1790 |
|
---|
| 1791 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1792 | {
|
---|
[574] | 1793 | if (!mOnlyValidViewCells || (*it)->GetValid())
|
---|
| 1794 | {
|
---|
[582] | 1795 | ExportColor(exporter, *it);
|
---|
[591] | 1796 | ExportViewCellGeometry(exporter, *it,
|
---|
[660] | 1797 | mUseClipPlaneForViz ? &mClipPlane : NULL);
|
---|
[574] | 1798 | }
|
---|
[482] | 1799 | }
|
---|
| 1800 | }
|
---|
| 1801 |
|
---|
| 1802 |
|
---|
[517] | 1803 | void ViewCellsManager::CreateViewCellMeshes()
|
---|
[503] | 1804 | {
|
---|
| 1805 | // convert to meshes
|
---|
| 1806 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1807 |
|
---|
| 1808 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1809 | {
|
---|
[517] | 1810 | if (!(*it)->GetMesh())
|
---|
| 1811 | CreateMesh(*it);
|
---|
[503] | 1812 | }
|
---|
| 1813 | }
|
---|
| 1814 |
|
---|
[508] | 1815 |
|
---|
[564] | 1816 | bool ViewCellsManager::ExportViewCells(const string filename)
|
---|
| 1817 | {
|
---|
[508] | 1818 | return false;
|
---|
| 1819 | }
|
---|
| 1820 |
|
---|
| 1821 |
|
---|
[610] | 1822 | void ViewCellsManager::CollectViewCells(const int n)
|
---|
[508] | 1823 | {
|
---|
[610] | 1824 | mNumActiveViewCells = n;
|
---|
| 1825 | mViewCells.clear();
|
---|
| 1826 | CollectViewCells();
|
---|
| 1827 | }
|
---|
[508] | 1828 |
|
---|
| 1829 |
|
---|
[660] | 1830 | void ViewCellsManager::SetViewCellsActive()
|
---|
| 1831 | {
|
---|
| 1832 | ++ ViewCell::sLastUpdated;
|
---|
| 1833 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 1834 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 1835 | {
|
---|
| 1836 | (*it)->SetActive();
|
---|
| 1837 | }
|
---|
| 1838 | }
|
---|
[508] | 1839 |
|
---|
[440] | 1840 | /**********************************************************************/
|
---|
| 1841 | /* BspViewCellsManager implementation */
|
---|
| 1842 | /**********************************************************************/
|
---|
| 1843 |
|
---|
[482] | 1844 |
|
---|
[574] | 1845 | BspViewCellsManager::BspViewCellsManager(BspTree *bspTree):
|
---|
| 1846 | ViewCellsManager(), mBspTree(bspTree)
|
---|
[440] | 1847 | {
|
---|
[574] | 1848 | environment->GetIntValue("BspTree.Construction.samples", mInitialSamples);
|
---|
[587] | 1849 | mBspTree->SetViewCellsManager(this);
|
---|
[590] | 1850 | mBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[440] | 1851 | }
|
---|
| 1852 |
|
---|
[462] | 1853 |
|
---|
[440] | 1854 | bool BspViewCellsManager::ViewCellsConstructed() const
|
---|
| 1855 | {
|
---|
| 1856 | return mBspTree->GetRoot() != NULL;
|
---|
| 1857 | }
|
---|
| 1858 |
|
---|
[480] | 1859 |
|
---|
[440] | 1860 | ViewCell *BspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 1861 | {
|
---|
| 1862 | return new BspViewCell(mesh);
|
---|
| 1863 | }
|
---|
| 1864 |
|
---|
[480] | 1865 |
|
---|
[574] | 1866 | int BspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 1867 | const VssRayContainer &rays)
|
---|
[440] | 1868 | {
|
---|
[441] | 1869 | // if view cells were already constructed
|
---|
[440] | 1870 | if (ViewCellsConstructed())
|
---|
| 1871 | return 0;
|
---|
| 1872 |
|
---|
| 1873 | int sampleContributions = 0;
|
---|
[503] | 1874 |
|
---|
[469] | 1875 | // construct view cells using the collected samples
|
---|
| 1876 | RayContainer constructionRays;
|
---|
| 1877 | VssRayContainer savedRays;
|
---|
[440] | 1878 |
|
---|
[574] | 1879 | const int limit = min(mInitialSamples, (int)rays.size());
|
---|
[440] | 1880 |
|
---|
[469] | 1881 | VssRayContainer::const_iterator it, it_end = rays.end();
|
---|
[448] | 1882 |
|
---|
[473] | 1883 | const float prop = (float)limit / ((float)rays.size() + Limits::Small);
|
---|
| 1884 |
|
---|
[469] | 1885 | for (it = rays.begin(); it != it_end; ++ it)
|
---|
| 1886 | {
|
---|
[473] | 1887 | if (Random(1.0f) < prop)
|
---|
[469] | 1888 | constructionRays.push_back(new Ray(*(*it)));
|
---|
| 1889 | else
|
---|
| 1890 | savedRays.push_back(*it);
|
---|
| 1891 | }
|
---|
[440] | 1892 |
|
---|
[503] | 1893 | if (mViewCells.empty())
|
---|
| 1894 | {
|
---|
| 1895 | // no view cells loaded
|
---|
[587] | 1896 | mBspTree->Construct(objects, constructionRays, &mViewSpaceBox);
|
---|
[469] | 1897 | // collect final view cells
|
---|
| 1898 | mBspTree->CollectViewCells(mViewCells);
|
---|
[503] | 1899 | }
|
---|
[469] | 1900 | else
|
---|
| 1901 | {
|
---|
| 1902 | mBspTree->Construct(mViewCells);
|
---|
| 1903 | }
|
---|
| 1904 |
|
---|
| 1905 | // destroy rays created only for construction
|
---|
| 1906 | CLEAR_CONTAINER(constructionRays);
|
---|
| 1907 |
|
---|
[440] | 1908 | Debug << mBspTree->GetStatistics() << endl;
|
---|
[503] | 1909 |
|
---|
| 1910 | //EvaluateViewCellsStats();
|
---|
[660] | 1911 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[480] | 1912 |
|
---|
[469] | 1913 | // recast rest of the rays
|
---|
[649] | 1914 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 1915 | ComputeSampleContributions(savedRays, true, false);
|
---|
[469] | 1916 |
|
---|
[719] | 1917 | // real meshes are contructed at this stage
|
---|
| 1918 | if (0)
|
---|
| 1919 | {
|
---|
| 1920 | cout << "finalizing view cells ... ";
|
---|
| 1921 | FinalizeViewCells(true);
|
---|
| 1922 | cout << "finished" << endl;
|
---|
| 1923 | }
|
---|
| 1924 |
|
---|
[440] | 1925 | return sampleContributions;
|
---|
| 1926 | }
|
---|
| 1927 |
|
---|
[503] | 1928 |
|
---|
[480] | 1929 | void BspViewCellsManager::CollectViewCells()
|
---|
| 1930 | {
|
---|
[587] | 1931 | // view cells tree constructed
|
---|
| 1932 | if (!ViewCellsTreeConstructed())
|
---|
[591] | 1933 | {
|
---|
[587] | 1934 | mBspTree->CollectViewCells(mViewCells);
|
---|
| 1935 | }
|
---|
| 1936 | else
|
---|
| 1937 | {
|
---|
| 1938 | // we can use the view cells tree hierarchy to get the right set
|
---|
[591] | 1939 | mViewCellsTree->CollectBestViewCellSet(mViewCells,
|
---|
[600] | 1940 | mNumActiveViewCells);
|
---|
[587] | 1941 | }
|
---|
[480] | 1942 | }
|
---|
[468] | 1943 |
|
---|
[503] | 1944 |
|
---|
[471] | 1945 | float BspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[440] | 1946 | {
|
---|
[471] | 1947 | // compute view cell area as subsititute for probability
|
---|
[591] | 1948 | if (1)
|
---|
| 1949 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
| 1950 | else
|
---|
| 1951 | return GetArea(viewCell) / GetAccVcArea();
|
---|
[466] | 1952 | }
|
---|
[440] | 1953 |
|
---|
[503] | 1954 |
|
---|
[440] | 1955 |
|
---|
[468] | 1956 | int BspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 1957 | const Vector3 &termination,
|
---|
| 1958 | ViewCellContainer &viewcells)
|
---|
[440] | 1959 | {
|
---|
[468] | 1960 | return mBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
| 1961 | }
|
---|
| 1962 |
|
---|
| 1963 |
|
---|
[503] | 1964 | int BspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[468] | 1965 | const VssRayContainer &rays)
|
---|
| 1966 | {
|
---|
[469] | 1967 | if (!ViewCellsConstructed())
|
---|
[441] | 1968 | {
|
---|
| 1969 | Debug << "view cells not constructed" << endl;
|
---|
| 1970 | return 0;
|
---|
| 1971 | }
|
---|
[590] | 1972 |
|
---|
| 1973 | // view cells already finished before post processing step (i.e. because they were loaded)
|
---|
| 1974 | if (mViewCellsFinished)
|
---|
| 1975 | {
|
---|
| 1976 | FinalizeViewCells(true);
|
---|
| 1977 | EvaluateViewCellsStats();
|
---|
| 1978 |
|
---|
| 1979 | return 0;
|
---|
| 1980 | }
|
---|
| 1981 |
|
---|
[440] | 1982 | //-- post processing of bsp view cells
|
---|
[600] | 1983 |
|
---|
[440] | 1984 | int vcSize = 0;
|
---|
| 1985 | int pvsSize = 0;
|
---|
| 1986 |
|
---|
[591] | 1987 | //-- merge view cells
|
---|
[649] | 1988 | cout << "starting post processing using " << mPostProcessSamples << " samples ... ";
|
---|
| 1989 | long startTime = GetTime();
|
---|
| 1990 |
|
---|
| 1991 | VssRayContainer postProcessRays;
|
---|
| 1992 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 1993 |
|
---|
[592] | 1994 | if (mMergeViewCells)
|
---|
[591] | 1995 | {
|
---|
[660] | 1996 | cout << "constructing visibility based merge tree" << endl;
|
---|
[650] | 1997 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
[649] | 1998 | }
|
---|
| 1999 | else
|
---|
| 2000 | {
|
---|
[660] | 2001 | cout << "constructing spatial merge tree" << endl;
|
---|
[752] | 2002 |
|
---|
[649] | 2003 | // create spatial merge hierarchy
|
---|
[752] | 2004 | ViewCell *root = ConstructSpatialMergeTree(mBspTree->GetRoot());
|
---|
| 2005 | mViewCellsTree->SetRoot(root);
|
---|
| 2006 |
|
---|
| 2007 | // compute pvs
|
---|
| 2008 | ObjectPvs pvs;
|
---|
| 2009 | UpdatePvsForEvaluation(root, pvs);
|
---|
[649] | 2010 | }
|
---|
[440] | 2011 |
|
---|
[660] | 2012 | // export statistics after merge
|
---|
[666] | 2013 | if (1)
|
---|
| 2014 | {
|
---|
| 2015 | char mstats[100];
|
---|
| 2016 | environment->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
| 2017 | mViewCellsTree->ExportStats(mstats);
|
---|
| 2018 | }
|
---|
[650] | 2019 |
|
---|
[649] | 2020 | //-- stats and visualizations
|
---|
| 2021 | cout << "finished" << endl;
|
---|
[650] | 2022 | cout << "merged view cells in "
|
---|
[752] | 2023 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl;
|
---|
[440] | 2024 |
|
---|
[650] | 2025 | Debug << "Postprocessing: Merged view cells in "
|
---|
[752] | 2026 | << TimeDiff(startTime, GetTime()) * 1e-3 << " secs" << endl << endl;
|
---|
[649] | 2027 |
|
---|
[503] | 2028 |
|
---|
[660] | 2029 | //-- visualization and statistics
|
---|
[600] | 2030 | // reset view cells and stats
|
---|
[480] | 2031 | ResetViewCells();
|
---|
[660] | 2032 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
[600] | 2033 |
|
---|
[660] | 2034 |
|
---|
[600] | 2035 | int savedColorCode = mColorCode;
|
---|
[605] | 2036 |
|
---|
[600] | 2037 | //BspLeaf::NewMail();
|
---|
| 2038 | if (1) // export merged view cells
|
---|
| 2039 | {
|
---|
| 2040 | mColorCode = 0;
|
---|
[605] | 2041 |
|
---|
[744] | 2042 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[605] | 2043 |
|
---|
[600] | 2044 |
|
---|
| 2045 | cout << "exporting view cells after merge ... ";
|
---|
| 2046 |
|
---|
| 2047 | if (exporter)
|
---|
| 2048 | {
|
---|
| 2049 | if (mExportGeometry)
|
---|
| 2050 | exporter->ExportGeometry(objects);
|
---|
| 2051 |
|
---|
| 2052 | //exporter->SetWireframe();
|
---|
| 2053 | exporter->SetFilled();
|
---|
| 2054 | ExportViewCellsForViz(exporter);
|
---|
| 2055 |
|
---|
| 2056 |
|
---|
| 2057 | delete exporter;
|
---|
| 2058 | }
|
---|
| 2059 | cout << "finished" << endl;
|
---|
| 2060 | }
|
---|
| 2061 |
|
---|
[752] | 2062 | if (1) // export merged view cells using pvs color coding
|
---|
[600] | 2063 | {
|
---|
| 2064 | mColorCode = 1;
|
---|
| 2065 |
|
---|
[744] | 2066 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[600] | 2067 |
|
---|
| 2068 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 2069 |
|
---|
| 2070 | if (exporter)
|
---|
| 2071 | {
|
---|
| 2072 | //exporter->SetWireframe();
|
---|
[752] | 2073 | //exporter->SetForcedMaterial(RandomMaterial());
|
---|
| 2074 |
|
---|
[600] | 2075 | if (mExportGeometry)
|
---|
| 2076 | exporter->ExportGeometry(objects);
|
---|
| 2077 |
|
---|
| 2078 | //exporter->SetWireframe();
|
---|
| 2079 | exporter->SetFilled();
|
---|
| 2080 | ExportViewCellsForViz(exporter);
|
---|
| 2081 |
|
---|
| 2082 | delete exporter;
|
---|
| 2083 | }
|
---|
| 2084 | cout << "finished" << endl;
|
---|
| 2085 | }
|
---|
| 2086 |
|
---|
[693] | 2087 |
|
---|
| 2088 | // only for testing
|
---|
| 2089 | TestSubdivision();
|
---|
| 2090 |
|
---|
[600] | 2091 | mColorCode = savedColorCode;
|
---|
| 2092 |
|
---|
[719] | 2093 | // compute final meshes and volume / area
|
---|
| 2094 | if (1) FinalizeViewCells(true);
|
---|
| 2095 |
|
---|
[587] | 2096 | // write view cells to disc
|
---|
| 2097 | if (mExportViewCells)
|
---|
| 2098 | {
|
---|
| 2099 | char buff[100];
|
---|
| 2100 | environment->GetStringValue("ViewCells.filename", buff);
|
---|
| 2101 | string vcFilename(buff);
|
---|
| 2102 |
|
---|
| 2103 | ExportViewCells(buff);
|
---|
| 2104 | }
|
---|
| 2105 |
|
---|
[650] | 2106 | return 0;
|
---|
[440] | 2107 | }
|
---|
| 2108 |
|
---|
[477] | 2109 |
|
---|
| 2110 | BspViewCellsManager::~BspViewCellsManager()
|
---|
| 2111 | {
|
---|
| 2112 | }
|
---|
| 2113 |
|
---|
| 2114 |
|
---|
[440] | 2115 | int BspViewCellsManager::GetType() const
|
---|
| 2116 | {
|
---|
| 2117 | return BSP;
|
---|
| 2118 | }
|
---|
| 2119 |
|
---|
| 2120 |
|
---|
| 2121 | void BspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 2122 | const VssRayContainer &sampleRays)
|
---|
[440] | 2123 | {
|
---|
[469] | 2124 | if (!ViewCellsConstructed())
|
---|
| 2125 | return;
|
---|
[574] | 2126 |
|
---|
[600] | 2127 | int savedColorCode = mColorCode;
|
---|
| 2128 |
|
---|
| 2129 |
|
---|
| 2130 |
|
---|
| 2131 | if (1) // export final view cells
|
---|
[440] | 2132 | {
|
---|
[600] | 2133 | mColorCode = 1;
|
---|
[587] | 2134 |
|
---|
[712] | 2135 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 2136 |
|
---|
| 2137 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
[587] | 2138 |
|
---|
[469] | 2139 | if (exporter)
|
---|
[440] | 2140 | {
|
---|
[600] | 2141 | //exporter->SetWireframe();
|
---|
| 2142 |
|
---|
| 2143 | if (mExportGeometry)
|
---|
| 2144 | exporter->ExportGeometry(objects);
|
---|
[590] | 2145 |
|
---|
[600] | 2146 | //exporter->SetWireframe();
|
---|
| 2147 | exporter->SetFilled();
|
---|
[508] | 2148 | ExportViewCellsForViz(exporter);
|
---|
[587] | 2149 |
|
---|
[469] | 2150 | delete exporter;
|
---|
[440] | 2151 | }
|
---|
[469] | 2152 | cout << "finished" << endl;
|
---|
[503] | 2153 | }
|
---|
[477] | 2154 |
|
---|
[600] | 2155 | mColorCode = savedColorCode;
|
---|
| 2156 |
|
---|
[469] | 2157 | //-- visualization of the BSP splits
|
---|
| 2158 | bool exportSplits = false;
|
---|
| 2159 | environment->GetBoolValue("BspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 2160 |
|
---|
[469] | 2161 | if (exportSplits)
|
---|
[440] | 2162 | {
|
---|
[469] | 2163 | cout << "exporting splits ... ";
|
---|
[477] | 2164 | ExportSplits(objects);
|
---|
[469] | 2165 | cout << "finished" << endl;
|
---|
[440] | 2166 | }
|
---|
[477] | 2167 |
|
---|
[600] | 2168 | // export single view cells
|
---|
[477] | 2169 | ExportBspPvs(objects);
|
---|
[440] | 2170 | }
|
---|
| 2171 |
|
---|
| 2172 |
|
---|
[503] | 2173 | inline bool vc_gt(ViewCell *a, ViewCell *b)
|
---|
| 2174 | {
|
---|
[440] | 2175 | return a->GetPvs().GetSize() > b->GetPvs().GetSize();
|
---|
| 2176 | }
|
---|
| 2177 |
|
---|
[477] | 2178 |
|
---|
| 2179 | void BspViewCellsManager::ExportSplits(const ObjectContainer &objects)
|
---|
[440] | 2180 | {
|
---|
| 2181 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 2182 |
|
---|
[503] | 2183 | if (exporter)
|
---|
| 2184 | {
|
---|
[598] | 2185 | //exporter->SetFilled();
|
---|
| 2186 |
|
---|
| 2187 | if (mExportGeometry)
|
---|
| 2188 | exporter->ExportGeometry(objects);
|
---|
| 2189 |
|
---|
[503] | 2190 | Material m;
|
---|
[440] | 2191 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2192 | exporter->SetForcedMaterial(m);
|
---|
| 2193 | exporter->SetWireframe();
|
---|
[503] | 2194 |
|
---|
[440] | 2195 | exporter->ExportBspSplits(*mBspTree, true);
|
---|
| 2196 |
|
---|
[482] | 2197 | //NOTE: take forced material, else big scenes cannot be viewed
|
---|
[440] | 2198 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 2199 | exporter->SetForcedMaterial(m);
|
---|
[482] | 2200 | //exporter->ResetForcedMaterial();
|
---|
| 2201 |
|
---|
[440] | 2202 | delete exporter;
|
---|
| 2203 | }
|
---|
| 2204 | }
|
---|
| 2205 |
|
---|
[477] | 2206 |
|
---|
| 2207 | void BspViewCellsManager::ExportBspPvs(const ObjectContainer &objects)
|
---|
[440] | 2208 | {
|
---|
[477] | 2209 | const int leafOut = 10;
|
---|
[503] | 2210 |
|
---|
[477] | 2211 | ViewCell::NewMail();
|
---|
[440] | 2212 |
|
---|
[477] | 2213 | //-- some rays for output
|
---|
| 2214 | const int raysOut = min((int)mBspRays.size(), mVisualizationSamples);
|
---|
[503] | 2215 |
|
---|
[477] | 2216 | cout << "visualization using " << mVisualizationSamples << " samples" << endl;
|
---|
| 2217 | Debug << "\nOutput view cells: " << endl;
|
---|
[503] | 2218 |
|
---|
[478] | 2219 | // sort view cells to get largest view cells
|
---|
[587] | 2220 | if (0)
|
---|
| 2221 | stable_sort(mViewCells.begin(), mViewCells.end(), vc_gt);
|
---|
| 2222 |
|
---|
[503] | 2223 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
| 2224 |
|
---|
[478] | 2225 | for (int i = 0; i < limit; ++ i)
|
---|
[477] | 2226 | {
|
---|
[478] | 2227 | cout << "creating output for view cell " << i << " ... ";
|
---|
| 2228 | VssRayContainer vcRays;
|
---|
| 2229 | Intersectable::NewMail();
|
---|
[582] | 2230 | ViewCell *vc;
|
---|
| 2231 |
|
---|
| 2232 | if (0)
|
---|
| 2233 | vc = mViewCells[i];
|
---|
| 2234 | else
|
---|
| 2235 | vc = mViewCells[Random((int)mViewCells.size())];
|
---|
| 2236 |
|
---|
[478] | 2237 | cout << "creating output for view cell " << i << " ... ";
|
---|
[469] | 2238 |
|
---|
[587] | 2239 | if(0)
|
---|
[477] | 2240 | {
|
---|
[587] | 2241 | // check whether we can add the current ray to the output rays
|
---|
| 2242 | for (int k = 0; k < raysOut; ++ k)
|
---|
[477] | 2243 | {
|
---|
[587] | 2244 | BspRay *ray = mBspRays[k];
|
---|
| 2245 | for (int j = 0; j < (int)ray->intersections.size(); ++ j)
|
---|
| 2246 | {
|
---|
| 2247 | BspLeaf *leaf = ray->intersections[j].mLeaf;
|
---|
| 2248 | if (vc == leaf->GetViewCell())
|
---|
| 2249 | vcRays.push_back(ray->vssRay);
|
---|
| 2250 | }
|
---|
[477] | 2251 | }
|
---|
| 2252 | }
|
---|
[587] | 2253 |
|
---|
[478] | 2254 | //bspLeaves[j]->Mail();
|
---|
| 2255 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
[477] | 2256 |
|
---|
[478] | 2257 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
[503] | 2258 |
|
---|
[478] | 2259 | exporter->SetWireframe();
|
---|
[477] | 2260 |
|
---|
[478] | 2261 | Material m;//= RandomMaterial();
|
---|
| 2262 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 2263 | exporter->SetForcedMaterial(m);
|
---|
[477] | 2264 |
|
---|
[587] | 2265 | ExportViewCellGeometry(exporter, vc);
|
---|
| 2266 |
|
---|
[478] | 2267 | // export rays piercing this view cell
|
---|
| 2268 | exporter->ExportRays(vcRays, RgbColor(0, 1, 0));
|
---|
[580] | 2269 |
|
---|
[478] | 2270 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2271 | exporter->SetForcedMaterial(m);
|
---|
[440] | 2272 |
|
---|
[478] | 2273 | ObjectPvsMap::const_iterator it,
|
---|
| 2274 | it_end = vc->GetPvs().mEntries.end();
|
---|
[440] | 2275 |
|
---|
[478] | 2276 | exporter->SetFilled();
|
---|
[469] | 2277 |
|
---|
[478] | 2278 | // output PVS of view cell
|
---|
[503] | 2279 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[478] | 2280 | {
|
---|
| 2281 | Intersectable *intersect = (*it).first;
|
---|
[469] | 2282 |
|
---|
[478] | 2283 | if (!intersect->Mailed())
|
---|
| 2284 | {
|
---|
| 2285 | Material m = RandomMaterial();
|
---|
| 2286 | exporter->SetForcedMaterial(m);
|
---|
| 2287 |
|
---|
| 2288 | exporter->ExportIntersectable(intersect);
|
---|
| 2289 | intersect->Mail();
|
---|
[503] | 2290 | }
|
---|
[477] | 2291 | }
|
---|
[503] | 2292 |
|
---|
[478] | 2293 | DEL_PTR(exporter);
|
---|
| 2294 | cout << "finished" << endl;
|
---|
[477] | 2295 | }
|
---|
| 2296 |
|
---|
| 2297 | Debug << endl;
|
---|
[440] | 2298 | }
|
---|
| 2299 |
|
---|
[441] | 2300 |
|
---|
[503] | 2301 | void BspViewCellsManager::ExportColor(Exporter *exporter,
|
---|
[482] | 2302 | ViewCell *vc) const
|
---|
| 2303 | {
|
---|
[600] | 2304 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
[482] | 2305 |
|
---|
| 2306 | float importance = 0;
|
---|
[598] | 2307 | static Material m;
|
---|
[482] | 2308 |
|
---|
| 2309 | switch (mColorCode)
|
---|
| 2310 | {
|
---|
[598] | 2311 | case 0: // Random
|
---|
| 2312 | {
|
---|
| 2313 | if (vcValid)
|
---|
| 2314 | {
|
---|
| 2315 | m.mDiffuseColor.r = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 2316 | m.mDiffuseColor.g = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
[600] | 2317 | m.mDiffuseColor.b = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
[598] | 2318 | }
|
---|
| 2319 | else
|
---|
| 2320 | {
|
---|
| 2321 | m.mDiffuseColor.r = 0.0f;
|
---|
| 2322 | m.mDiffuseColor.g = 1.0f;
|
---|
| 2323 | m.mDiffuseColor.b = 0.0f;
|
---|
| 2324 | }
|
---|
| 2325 |
|
---|
| 2326 | exporter->SetForcedMaterial(m);
|
---|
| 2327 | return;
|
---|
| 2328 | }
|
---|
| 2329 |
|
---|
[482] | 2330 | case 1: // pvs
|
---|
| 2331 | {
|
---|
[503] | 2332 | importance = (float)vc->GetPvs().GetSize() /
|
---|
[660] | 2333 | (float)mCurrentViewCellsStats.maxPvs;
|
---|
[598] | 2334 |
|
---|
[482] | 2335 | }
|
---|
| 2336 | break;
|
---|
| 2337 | case 2: // merges
|
---|
| 2338 | {
|
---|
[736] | 2339 | int lSize = mViewCellsTree->GetNumInitialViewCells(vc);
|
---|
[660] | 2340 | importance = (float)lSize / (float)mCurrentViewCellsStats.maxLeaves;
|
---|
[482] | 2341 | }
|
---|
[598] | 2342 | //break;
|
---|
[482] | 2343 | case 3: // merge tree differene
|
---|
| 2344 | {
|
---|
| 2345 | // TODO
|
---|
[598] | 2346 | //importance = (float)GetMaxTreeDiff(vc) /
|
---|
| 2347 | // (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
| 2348 |
|
---|
[482] | 2349 | }
|
---|
| 2350 | break;
|
---|
| 2351 | default:
|
---|
| 2352 | break;
|
---|
| 2353 | }
|
---|
| 2354 |
|
---|
[598] | 2355 | // special color code for invalid view cells
|
---|
[482] | 2356 | m.mDiffuseColor.r = importance;
|
---|
| 2357 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
[598] | 2358 | m.mDiffuseColor.b = vcValid ? 1.0f : 0.0f;
|
---|
[503] | 2359 |
|
---|
[598] | 2360 | //Debug << "importance: " << importance << endl;
|
---|
[482] | 2361 | exporter->SetForcedMaterial(m);
|
---|
| 2362 | }
|
---|
| 2363 |
|
---|
[587] | 2364 |
|
---|
[693] | 2365 | void BspViewCellsManager::TestSubdivision()
|
---|
| 2366 | {
|
---|
| 2367 | ViewCellContainer leaves;
|
---|
| 2368 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 2369 |
|
---|
| 2370 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 2371 |
|
---|
| 2372 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 2373 | float subdivVol = 0;
|
---|
| 2374 | float newVol = 0;
|
---|
| 2375 |
|
---|
| 2376 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 2377 | {
|
---|
| 2378 | BspNodeGeometry geom;
|
---|
| 2379 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 2380 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
| 2381 |
|
---|
| 2382 | const float lVol = geom.GetVolume();
|
---|
| 2383 |
|
---|
| 2384 | newVol += lVol;
|
---|
| 2385 | subdivVol += (*it)->GetVolume();
|
---|
[694] | 2386 |
|
---|
[704] | 2387 | float thres = 0.9f;
|
---|
[694] | 2388 | if ((lVol < ((*it)->GetVolume() * thres)) ||
|
---|
| 2389 | (lVol * thres > ((*it)->GetVolume())))
|
---|
| 2390 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 2391 | }
|
---|
| 2392 |
|
---|
| 2393 | Debug << "exact volume: " << vol << endl;
|
---|
| 2394 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 2395 | Debug << "new volume: " << newVol << endl;
|
---|
| 2396 | }
|
---|
| 2397 |
|
---|
| 2398 |
|
---|
[580] | 2399 | void BspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 2400 | ViewCell *vc,
|
---|
[660] | 2401 | const Plane3 *clipPlane) const
|
---|
[482] | 2402 | {
|
---|
| 2403 | if (vc->GetMesh())
|
---|
| 2404 | {
|
---|
[587] | 2405 | exporter->ExportMesh(vc->GetMesh());
|
---|
[726] | 2406 |
|
---|
[587] | 2407 | return;
|
---|
[482] | 2408 | }
|
---|
[587] | 2409 |
|
---|
[726] | 2410 |
|
---|
[660] | 2411 | if (clipPlane)
|
---|
[591] | 2412 | {
|
---|
[726] | 2413 | ViewCellContainer leaves;
|
---|
| 2414 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 2415 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
[591] | 2416 |
|
---|
[726] | 2417 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[681] | 2418 | {
|
---|
[726] | 2419 | BspNodeGeometry geom;
|
---|
| 2420 |
|
---|
[681] | 2421 | BspNodeGeometry front;
|
---|
| 2422 | BspNodeGeometry back;
|
---|
[591] | 2423 |
|
---|
[726] | 2424 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 2425 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
[681] | 2426 |
|
---|
[726] | 2427 | const float eps = 0.00000001f;
|
---|
| 2428 | const int cf = geom.Side(*clipPlane, eps);
|
---|
| 2429 |
|
---|
| 2430 | if (cf == -1)
|
---|
| 2431 | {
|
---|
| 2432 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 2433 | }
|
---|
| 2434 | else if (cf == 0)
|
---|
| 2435 | {
|
---|
| 2436 | geom.SplitGeometry(front,
|
---|
| 2437 | back,
|
---|
| 2438 | *clipPlane,
|
---|
| 2439 | mViewSpaceBox,
|
---|
| 2440 | eps);
|
---|
| 2441 |
|
---|
| 2442 | //Debug << "geo size: " << geom.Size() << endl;
|
---|
| 2443 | //Debug << "size b: " << back.Size() << " f: " << front.Size() << endl;
|
---|
| 2444 | if (back.Valid())
|
---|
| 2445 | {
|
---|
| 2446 | exporter->ExportPolygons(back.GetPolys());
|
---|
| 2447 | }
|
---|
| 2448 | }
|
---|
[681] | 2449 | }
|
---|
[591] | 2450 | }
|
---|
| 2451 | else
|
---|
| 2452 | {
|
---|
[726] | 2453 | BspNodeGeometry geom;
|
---|
| 2454 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 2455 |
|
---|
[678] | 2456 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[591] | 2457 | }
|
---|
[482] | 2458 | }
|
---|
| 2459 |
|
---|
[503] | 2460 |
|
---|
| 2461 | void BspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 2462 | {
|
---|
[726] | 2463 | // delete previous mesh
|
---|
| 2464 | ///DEL_PTR(vc->GetMesh());
|
---|
[587] | 2465 | BspNodeGeometry geom;
|
---|
| 2466 | mBspTree->ConstructGeometry(vc, geom);
|
---|
| 2467 |
|
---|
| 2468 | Mesh *mesh = new Mesh();
|
---|
[726] | 2469 |
|
---|
[587] | 2470 | geom.AddToMesh(*mesh);
|
---|
| 2471 | vc->SetMesh(mesh);
|
---|
[726] | 2472 | // put mesh into mesh container so we can savely delete it
|
---|
[587] | 2473 | mMeshContainer.push_back(mesh);
|
---|
[503] | 2474 | }
|
---|
| 2475 |
|
---|
[551] | 2476 |
|
---|
[587] | 2477 | void BspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 2478 | const bool createMesh)
|
---|
[502] | 2479 | {
|
---|
[587] | 2480 | float area = 0;
|
---|
| 2481 | float volume = 0;
|
---|
[572] | 2482 |
|
---|
[587] | 2483 | ViewCellContainer leaves;
|
---|
| 2484 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
| 2485 |
|
---|
| 2486 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 2487 |
|
---|
[693] | 2488 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[587] | 2489 | {
|
---|
| 2490 | BspNodeGeometry geom;
|
---|
| 2491 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 2492 | mBspTree->ConstructGeometry(leaf, geom);
|
---|
| 2493 |
|
---|
[719] | 2494 | const float lVol = geom.GetVolume();
|
---|
| 2495 | const float lArea = geom.GetArea();
|
---|
[693] | 2496 |
|
---|
| 2497 | //(*it)->SetVolume(vol);
|
---|
| 2498 | //(*it)->SetArea(area);
|
---|
| 2499 |
|
---|
| 2500 | area += lArea;
|
---|
| 2501 | volume += lVol;
|
---|
| 2502 |
|
---|
| 2503 | CreateMesh(*it);
|
---|
[587] | 2504 | }
|
---|
| 2505 |
|
---|
| 2506 | viewCell->SetVolume(volume);
|
---|
| 2507 | viewCell->SetArea(area);
|
---|
[502] | 2508 | }
|
---|
| 2509 |
|
---|
[580] | 2510 |
|
---|
[587] | 2511 | ViewCell *BspViewCellsManager::GetViewCell(const Vector3 &point) const
|
---|
[580] | 2512 | {
|
---|
[587] | 2513 | if (!mBspTree)
|
---|
| 2514 | return NULL;
|
---|
| 2515 |
|
---|
| 2516 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 2517 | return NULL;
|
---|
| 2518 |
|
---|
| 2519 | return mBspTree->GetViewCell(point);
|
---|
[580] | 2520 | }
|
---|
| 2521 |
|
---|
| 2522 |
|
---|
[587] | 2523 | void BspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 2524 | vector<MergeCandidate> &candidates)
|
---|
| 2525 | {
|
---|
| 2526 | cout << "collecting merge candidates ... " << endl;
|
---|
| 2527 |
|
---|
| 2528 | if (mUseRaysForMerge)
|
---|
| 2529 | {
|
---|
| 2530 | mBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 2531 | }
|
---|
| 2532 | else
|
---|
| 2533 | {
|
---|
| 2534 | vector<BspLeaf *> leaves;
|
---|
| 2535 | mBspTree->CollectLeaves(leaves);
|
---|
| 2536 | mBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 2537 | }
|
---|
| 2538 |
|
---|
| 2539 | cout << "fininshed collecting candidates" << endl;
|
---|
| 2540 | }
|
---|
| 2541 |
|
---|
| 2542 |
|
---|
[440] | 2543 |
|
---|
[590] | 2544 | bool BspViewCellsManager::ExportViewCells(const string filename)
|
---|
| 2545 | {
|
---|
| 2546 | cout << "exporting view cells to xml ... ";
|
---|
| 2547 | std::ofstream stream;
|
---|
[503] | 2548 |
|
---|
[590] | 2549 | // for output we need unique ids for each view cell
|
---|
| 2550 | CreateUniqueViewCellIds();
|
---|
[503] | 2551 |
|
---|
[590] | 2552 |
|
---|
| 2553 | stream.open(filename.c_str());
|
---|
| 2554 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 2555 | stream << "<Visibility_Solution>" << endl;
|
---|
| 2556 |
|
---|
| 2557 | //-- the view space bounding box
|
---|
| 2558 | stream << "<ViewSpaceBox"
|
---|
| 2559 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 2560 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
| 2561 |
|
---|
| 2562 | //-- the type of the view cells hierarchy
|
---|
| 2563 | //stream << "<Hierarchy name=\"bspTree\" />" << endl;
|
---|
| 2564 | stream << "<Hierarchy name=\"vspBspTree\" />" << endl; // write vsp bsp here because can use same tree and is bug free
|
---|
| 2565 | //-- load the view cells itself, i.e., the ids and the pvs
|
---|
| 2566 | stream << "<ViewCells>" << endl;
|
---|
[610] | 2567 |
|
---|
| 2568 | #if 0
|
---|
| 2569 |
|
---|
[590] | 2570 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[610] | 2571 |
|
---|
[590] | 2572 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2573 | ExportViewCell(*it, stream);
|
---|
[610] | 2574 | #else
|
---|
| 2575 | mViewCellsTree->Export(stream);
|
---|
| 2576 | #endif
|
---|
[590] | 2577 |
|
---|
| 2578 | stream << "</ViewCells>" << endl;
|
---|
| 2579 |
|
---|
| 2580 | //-- load the hierarchy
|
---|
| 2581 | stream << "<Hierarchy>" << endl;
|
---|
| 2582 | mBspTree->Export(stream);
|
---|
| 2583 | stream << endl << "</Hierarchy>" << endl;
|
---|
| 2584 |
|
---|
| 2585 | stream << "</Visibility_Solution>" << endl;
|
---|
| 2586 | stream.close();
|
---|
| 2587 |
|
---|
| 2588 | cout << "finished" << endl;
|
---|
| 2589 |
|
---|
| 2590 | return true;
|
---|
| 2591 | }
|
---|
| 2592 |
|
---|
| 2593 |
|
---|
| 2594 | void BspViewCellsManager::AddCurrentViewCellsToHierarchy()
|
---|
| 2595 | {
|
---|
| 2596 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 2597 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 2598 | {
|
---|
| 2599 | ViewCell *vc = *it;
|
---|
| 2600 | ViewCellContainer leaves;
|
---|
| 2601 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 2602 |
|
---|
| 2603 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 2604 |
|
---|
| 2605 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
| 2606 | {
|
---|
| 2607 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(*lit);
|
---|
| 2608 | bspVc->mLeaf->SetViewCell(vc);
|
---|
| 2609 | }
|
---|
| 2610 | }
|
---|
| 2611 | }
|
---|
| 2612 |
|
---|
[610] | 2613 |
|
---|
[650] | 2614 | ViewCell *BspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[610] | 2615 | {
|
---|
[752] | 2616 | // terminate recursion
|
---|
[650] | 2617 | if (root->IsLeaf())
|
---|
| 2618 | {
|
---|
[752] | 2619 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 2620 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 2621 | return leaf->GetViewCell();
|
---|
[650] | 2622 | }
|
---|
| 2623 |
|
---|
| 2624 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 2625 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 2626 |
|
---|
[752] | 2627 | // evaluate merge cost for priority traversal
|
---|
[650] | 2628 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 2629 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[649] | 2630 |
|
---|
[650] | 2631 | float volume = 0;
|
---|
[649] | 2632 |
|
---|
[650] | 2633 | BspNode *front = interior->GetFront();
|
---|
| 2634 | BspNode *back = interior->GetBack();
|
---|
[649] | 2635 |
|
---|
[752] | 2636 |
|
---|
| 2637 | //-- recursivly compute child hierarchies
|
---|
[650] | 2638 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 2639 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 2640 |
|
---|
[752] | 2641 |
|
---|
| 2642 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 2643 | viewCellInterior->SetupChildLink(frontVc);
|
---|
[610] | 2644 |
|
---|
[650] | 2645 | volume += backVc->GetVolume();
|
---|
| 2646 | volume += frontVc->GetVolume();
|
---|
[649] | 2647 |
|
---|
[650] | 2648 | viewCellInterior->SetVolume(volume);
|
---|
[649] | 2649 |
|
---|
[650] | 2650 | return viewCellInterior;
|
---|
[610] | 2651 | }
|
---|
| 2652 |
|
---|
[650] | 2653 |
|
---|
[752] | 2654 | void BspViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 2655 | {
|
---|
| 2656 | // terminate traversal
|
---|
| 2657 | if (root->IsLeaf())
|
---|
| 2658 | {
|
---|
| 2659 | pvs = root->GetPvs();
|
---|
| 2660 |
|
---|
| 2661 | root->mPvsSize = pvs.GetSize();
|
---|
| 2662 | root->mPvsSizeValid = true;
|
---|
| 2663 |
|
---|
| 2664 | return;
|
---|
| 2665 | }
|
---|
| 2666 |
|
---|
| 2667 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
| 2668 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
| 2669 |
|
---|
| 2670 | vector<ObjectPvs> pvsList;
|
---|
| 2671 |
|
---|
| 2672 |
|
---|
| 2673 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit)
|
---|
| 2674 | {
|
---|
| 2675 | ObjectPvs objPvs;
|
---|
| 2676 |
|
---|
| 2677 | //-- recursivly compute child pvss
|
---|
| 2678 | UpdatePvsForEvaluation(*vit, objPvs);
|
---|
| 2679 |
|
---|
| 2680 | // store pvs in vector
|
---|
| 2681 | pvsList.push_back(objPvs);
|
---|
| 2682 | }
|
---|
| 2683 |
|
---|
| 2684 | #if 1
|
---|
| 2685 | Intersectable::NewMail();
|
---|
| 2686 |
|
---|
| 2687 | //-- faster way of computing pvs:
|
---|
| 2688 | // construct merged pvs by adding
|
---|
| 2689 | // and only those of the next pvs which were not mailed.
|
---|
| 2690 | // note: sumpdf is not correct!!
|
---|
| 2691 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 2692 |
|
---|
| 2693 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 2694 | {
|
---|
| 2695 |
|
---|
| 2696 | ObjectPvsMap::iterator pit, pit_end = (*oit).mEntries.end();
|
---|
| 2697 |
|
---|
| 2698 | for (pit = (*oit).mEntries.begin(); pit != pit_end; ++ pit)
|
---|
| 2699 | {
|
---|
| 2700 |
|
---|
| 2701 | Intersectable *intersect = (*pit).first;
|
---|
| 2702 |
|
---|
| 2703 | if (!intersect->Mailed())
|
---|
| 2704 | {
|
---|
| 2705 | pvs.AddSample(intersect, (*pit).second.mSumPdf);
|
---|
| 2706 | intersect->Mail();
|
---|
| 2707 | }
|
---|
| 2708 | }
|
---|
| 2709 | }
|
---|
| 2710 |
|
---|
| 2711 | // store pvs in this node
|
---|
| 2712 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 2713 | {
|
---|
| 2714 | interior->mPvs = pvs;
|
---|
| 2715 | }
|
---|
| 2716 |
|
---|
| 2717 | // set new pvs size
|
---|
| 2718 | interior->mPvsSize = pvs.GetSize();
|
---|
| 2719 | interior->mPvsSizeValid = true;
|
---|
| 2720 |
|
---|
| 2721 | #else
|
---|
| 2722 | // really merge cells: slow put sumpdf is correct
|
---|
| 2723 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 2724 |
|
---|
| 2725 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 2726 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 2727 | #endif
|
---|
| 2728 |
|
---|
| 2729 | }
|
---|
| 2730 |
|
---|
[590] | 2731 | /************************************************************************/
|
---|
| 2732 | /* KdViewCellsManager implementation */
|
---|
| 2733 | /************************************************************************/
|
---|
| 2734 |
|
---|
| 2735 |
|
---|
| 2736 |
|
---|
[440] | 2737 | KdViewCellsManager::KdViewCellsManager(KdTree *kdTree):
|
---|
[469] | 2738 | ViewCellsManager(), mKdTree(kdTree), mKdPvsDepth(100)
|
---|
[440] | 2739 | {
|
---|
| 2740 | }
|
---|
| 2741 |
|
---|
[605] | 2742 |
|
---|
[471] | 2743 | float KdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 2744 | {
|
---|
[479] | 2745 | // compute view cell area / volume as subsititute for probability
|
---|
[605] | 2746 | if (0)
|
---|
| 2747 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
| 2748 | else
|
---|
| 2749 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
[468] | 2750 | }
|
---|
| 2751 |
|
---|
| 2752 |
|
---|
| 2753 |
|
---|
[479] | 2754 |
|
---|
[480] | 2755 | void KdViewCellsManager::CollectViewCells()
|
---|
| 2756 | {
|
---|
| 2757 | //mKdTree->CollectViewCells(mViewCells); TODO
|
---|
| 2758 | }
|
---|
[479] | 2759 |
|
---|
[519] | 2760 |
|
---|
[574] | 2761 | int KdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[487] | 2762 | const VssRayContainer &rays)
|
---|
[440] | 2763 | {
|
---|
[441] | 2764 | // if view cells already constructed
|
---|
[440] | 2765 | if (ViewCellsConstructed())
|
---|
| 2766 | return 0;
|
---|
[441] | 2767 |
|
---|
[440] | 2768 | mKdTree->Construct();
|
---|
| 2769 |
|
---|
[480] | 2770 | mTotalAreaValid = false;
|
---|
[469] | 2771 | // create the view cells
|
---|
| 2772 | mKdTree->CreateAndCollectViewCells(mViewCells);
|
---|
[503] | 2773 |
|
---|
[480] | 2774 | // cast rays
|
---|
[574] | 2775 | ComputeSampleContributions(rays, true, false);
|
---|
[480] | 2776 |
|
---|
[479] | 2777 | EvaluateViewCellsStats();
|
---|
[660] | 2778 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[469] | 2779 |
|
---|
[440] | 2780 | return 0;
|
---|
| 2781 | }
|
---|
| 2782 |
|
---|
[587] | 2783 |
|
---|
[440] | 2784 | bool KdViewCellsManager::ViewCellsConstructed() const
|
---|
| 2785 | {
|
---|
| 2786 | return mKdTree->GetRoot() != NULL;
|
---|
| 2787 | }
|
---|
| 2788 |
|
---|
[503] | 2789 | int KdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 2790 | const VssRayContainer &rays)
|
---|
[440] | 2791 | {
|
---|
| 2792 | return 0;
|
---|
| 2793 | }
|
---|
| 2794 |
|
---|
| 2795 | void KdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 2796 | const VssRayContainer &sampleRays)
|
---|
[440] | 2797 | {
|
---|
[441] | 2798 | if (!ViewCellsConstructed())
|
---|
| 2799 | return;
|
---|
| 2800 |
|
---|
[469] | 2801 | // using view cells instead of the kd PVS of objects
|
---|
| 2802 | const bool useViewCells = true;
|
---|
| 2803 | bool exportRays = false;
|
---|
[440] | 2804 |
|
---|
| 2805 | int limit = min(mVisualizationSamples, (int)sampleRays.size());
|
---|
[469] | 2806 | const int pvsOut = min((int)objects.size(), 10);
|
---|
[466] | 2807 | VssRayContainer *rays = new VssRayContainer[pvsOut];
|
---|
[440] | 2808 |
|
---|
[469] | 2809 | if (useViewCells)
|
---|
[440] | 2810 | {
|
---|
[469] | 2811 | const int leafOut = 10;
|
---|
[503] | 2812 |
|
---|
[469] | 2813 | ViewCell::NewMail();
|
---|
[503] | 2814 |
|
---|
[469] | 2815 | //-- some rays for output
|
---|
| 2816 | const int raysOut = min((int)sampleRays.size(), mVisualizationSamples);
|
---|
| 2817 | Debug << "visualization using " << raysOut << " samples" << endl;
|
---|
| 2818 |
|
---|
| 2819 | //-- some random view cells and rays for output
|
---|
| 2820 | vector<KdLeaf *> kdLeaves;
|
---|
[503] | 2821 |
|
---|
[469] | 2822 | for (int i = 0; i < leafOut; ++ i)
|
---|
| 2823 | kdLeaves.push_back(dynamic_cast<KdLeaf *>(mKdTree->GetRandomLeaf()));
|
---|
[503] | 2824 |
|
---|
[469] | 2825 | for (int i = 0; i < kdLeaves.size(); ++ i)
|
---|
[440] | 2826 | {
|
---|
[469] | 2827 | KdLeaf *leaf = kdLeaves[i];
|
---|
| 2828 | RayContainer vcRays;
|
---|
[503] | 2829 |
|
---|
[469] | 2830 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 2831 | #if 0
|
---|
[469] | 2832 | // check whether we can add the current ray to the output rays
|
---|
[503] | 2833 | for (int k = 0; k < raysOut; ++ k)
|
---|
[440] | 2834 | {
|
---|
[469] | 2835 | Ray *ray = sampleRays[k];
|
---|
[503] | 2836 |
|
---|
[469] | 2837 | for (int j = 0; j < (int)ray->bspIntersections.size(); ++ j)
|
---|
| 2838 | {
|
---|
| 2839 | BspLeaf *leaf2 = ray->bspIntersections[j].mLeaf;
|
---|
[503] | 2840 |
|
---|
| 2841 | if (leaf->GetViewCell() == leaf2->GetViewCell())
|
---|
[469] | 2842 | {
|
---|
| 2843 | vcRays.push_back(ray);
|
---|
| 2844 | }
|
---|
| 2845 | }
|
---|
[479] | 2846 | }
|
---|
[503] | 2847 | #endif
|
---|
[469] | 2848 | Intersectable::NewMail();
|
---|
[503] | 2849 |
|
---|
[469] | 2850 | ViewCell *vc = leaf->mViewCell;
|
---|
[503] | 2851 |
|
---|
[469] | 2852 | //bspLeaves[j]->Mail();
|
---|
| 2853 | char s[64]; sprintf(s, "kd-pvs%04d.x3d", i);
|
---|
[503] | 2854 |
|
---|
[469] | 2855 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 2856 | exporter->SetFilled();
|
---|
| 2857 |
|
---|
| 2858 | exporter->SetWireframe();
|
---|
| 2859 | //exporter->SetFilled();
|
---|
[503] | 2860 |
|
---|
[469] | 2861 | Material m;//= RandomMaterial();
|
---|
| 2862 | m.mDiffuseColor = RgbColor(1, 1, 0);
|
---|
| 2863 | exporter->SetForcedMaterial(m);
|
---|
[503] | 2864 |
|
---|
[469] | 2865 | AxisAlignedBox3 box = mKdTree->GetBox(leaf);
|
---|
| 2866 | exporter->ExportBox(box);
|
---|
| 2867 |
|
---|
| 2868 | // export rays piercing this view cell
|
---|
[503] | 2869 | exporter->ExportRays(vcRays, 1000, RgbColor(0, 1, 0));
|
---|
| 2870 |
|
---|
[469] | 2871 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2872 | exporter->SetForcedMaterial(m);
|
---|
[503] | 2873 |
|
---|
[469] | 2874 | // exporter->SetWireframe();
|
---|
| 2875 | exporter->SetFilled();
|
---|
[503] | 2876 |
|
---|
[469] | 2877 | ObjectPvsMap::iterator it, it_end = vc->GetPvs().mEntries.end();
|
---|
[752] | 2878 | // -- output PVS of view cell
|
---|
[503] | 2879 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[469] | 2880 | {
|
---|
| 2881 | Intersectable *intersect = (*it).first;
|
---|
| 2882 | if (!intersect->Mailed())
|
---|
| 2883 | {
|
---|
| 2884 | exporter->ExportIntersectable(intersect);
|
---|
| 2885 | intersect->Mail();
|
---|
[503] | 2886 | }
|
---|
[440] | 2887 | }
|
---|
[503] | 2888 |
|
---|
[469] | 2889 | DEL_PTR(exporter);
|
---|
| 2890 | cout << "finished" << endl;
|
---|
[440] | 2891 | }
|
---|
[469] | 2892 |
|
---|
| 2893 | DEL_PTR(rays);
|
---|
[440] | 2894 | }
|
---|
[469] | 2895 | else // using kd PVS of objects
|
---|
| 2896 | {
|
---|
| 2897 | for (int i = 0; i < limit; ++ i)
|
---|
| 2898 | {
|
---|
| 2899 | VssRay *ray = sampleRays[i];
|
---|
[503] | 2900 |
|
---|
[469] | 2901 | // check whether we can add this to the rays
|
---|
[503] | 2902 | for (int j = 0; j < pvsOut; j++)
|
---|
[469] | 2903 | {
|
---|
| 2904 | if (objects[j] == ray->mTerminationObject)
|
---|
| 2905 | {
|
---|
| 2906 | rays[j].push_back(ray);
|
---|
| 2907 | }
|
---|
| 2908 | }
|
---|
| 2909 | }
|
---|
[440] | 2910 |
|
---|
[503] | 2911 | if (exportRays)
|
---|
[469] | 2912 | {
|
---|
| 2913 | Exporter *exporter = NULL;
|
---|
| 2914 | exporter = Exporter::GetExporter("sample-rays.x3d");
|
---|
| 2915 | exporter->SetWireframe();
|
---|
| 2916 | exporter->ExportKdTree(*mKdTree);
|
---|
[503] | 2917 |
|
---|
[728] | 2918 | for (i = 0; i < pvsOut; i++)
|
---|
[469] | 2919 | exporter->ExportRays(rays[i], RgbColor(1, 0, 0));
|
---|
| 2920 |
|
---|
| 2921 | exporter->SetFilled();
|
---|
[503] | 2922 |
|
---|
[469] | 2923 | delete exporter;
|
---|
| 2924 | }
|
---|
[440] | 2925 |
|
---|
[503] | 2926 | for (int k=0; k < pvsOut; k++)
|
---|
[469] | 2927 | {
|
---|
| 2928 | Intersectable *object = objects[k];
|
---|
[503] | 2929 | char s[64];
|
---|
[469] | 2930 | sprintf(s, "sample-pvs%04d.x3d", k);
|
---|
[440] | 2931 |
|
---|
[469] | 2932 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 2933 | exporter->SetWireframe();
|
---|
[503] | 2934 |
|
---|
[469] | 2935 | KdPvsMap::iterator i = object->mKdPvs.mEntries.begin();
|
---|
| 2936 | Intersectable::NewMail();
|
---|
[503] | 2937 |
|
---|
[469] | 2938 | // avoid adding the object to the list
|
---|
| 2939 | object->Mail();
|
---|
| 2940 | ObjectContainer visibleObjects;
|
---|
[503] | 2941 |
|
---|
| 2942 | for (; i != object->mKdPvs.mEntries.end(); i++)
|
---|
[469] | 2943 | {
|
---|
| 2944 | KdNode *node = (*i).first;
|
---|
| 2945 | exporter->ExportBox(mKdTree->GetBox(node));
|
---|
[503] | 2946 |
|
---|
[469] | 2947 | mKdTree->CollectObjects(node, visibleObjects);
|
---|
| 2948 | }
|
---|
[503] | 2949 |
|
---|
[469] | 2950 | exporter->ExportRays(rays[k], RgbColor(0, 1, 0));
|
---|
| 2951 | exporter->SetFilled();
|
---|
[503] | 2952 |
|
---|
[469] | 2953 | for (int j = 0; j < visibleObjects.size(); j++)
|
---|
| 2954 | exporter->ExportIntersectable(visibleObjects[j]);
|
---|
[503] | 2955 |
|
---|
[469] | 2956 | Material m;
|
---|
| 2957 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 2958 | exporter->SetForcedMaterial(m);
|
---|
| 2959 | exporter->ExportIntersectable(object);
|
---|
[503] | 2960 |
|
---|
[469] | 2961 | delete exporter;
|
---|
[440] | 2962 | }
|
---|
[503] | 2963 | }
|
---|
[440] | 2964 | }
|
---|
| 2965 |
|
---|
[469] | 2966 |
|
---|
[482] | 2967 | void KdViewCellsManager::ExportColor(Exporter *exporter,
|
---|
| 2968 | ViewCell *vc) const
|
---|
| 2969 | {
|
---|
| 2970 | // TODO
|
---|
| 2971 | }
|
---|
| 2972 |
|
---|
[666] | 2973 |
|
---|
[580] | 2974 | ViewCell *KdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 2975 | {
|
---|
| 2976 | return new KdViewCell(mesh);
|
---|
| 2977 | }
|
---|
[482] | 2978 |
|
---|
[580] | 2979 |
|
---|
| 2980 | void KdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 2981 | ViewCell *vc,
|
---|
[660] | 2982 | const Plane3 *clipPlane) const
|
---|
[482] | 2983 | {
|
---|
[580] | 2984 | ViewCellContainer leaves;
|
---|
[485] | 2985 |
|
---|
[580] | 2986 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 2987 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 2988 |
|
---|
| 2989 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 2990 | {
|
---|
| 2991 | KdViewCell *kdVc = dynamic_cast<KdViewCell *>(*it);
|
---|
| 2992 |
|
---|
| 2993 | exporter->ExportBox(mKdTree->GetBox(kdVc->mLeaf));
|
---|
| 2994 | }
|
---|
[482] | 2995 | }
|
---|
| 2996 |
|
---|
| 2997 |
|
---|
[440] | 2998 | int KdViewCellsManager::GetType() const
|
---|
| 2999 | {
|
---|
| 3000 | return ViewCellsManager::KD;
|
---|
| 3001 | }
|
---|
| 3002 |
|
---|
| 3003 |
|
---|
[441] | 3004 |
|
---|
[440] | 3005 | KdNode *KdViewCellsManager::GetNodeForPvs(KdLeaf *leaf)
|
---|
| 3006 | {
|
---|
| 3007 | KdNode *node = leaf;
|
---|
| 3008 |
|
---|
| 3009 | while (node->mParent && node->mDepth > mKdPvsDepth)
|
---|
| 3010 | node = node->mParent;
|
---|
| 3011 | return node;
|
---|
| 3012 | }
|
---|
| 3013 |
|
---|
[469] | 3014 | int KdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 3015 | const Vector3 &termination,
|
---|
| 3016 | ViewCellContainer &viewcells)
|
---|
[466] | 3017 | {
|
---|
[469] | 3018 | return mKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 3019 | }
|
---|
| 3020 |
|
---|
[469] | 3021 |
|
---|
[503] | 3022 | void KdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3023 | {
|
---|
[551] | 3024 | // TODO
|
---|
[503] | 3025 | }
|
---|
| 3026 |
|
---|
[580] | 3027 |
|
---|
| 3028 |
|
---|
| 3029 | void KdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3030 | vector<MergeCandidate> &candidates)
|
---|
| 3031 | {
|
---|
| 3032 | // TODO
|
---|
| 3033 | }
|
---|
| 3034 |
|
---|
| 3035 |
|
---|
[440] | 3036 | /**********************************************************************/
|
---|
| 3037 | /* VspKdViewCellsManager implementation */
|
---|
| 3038 | /**********************************************************************/
|
---|
| 3039 |
|
---|
[482] | 3040 |
|
---|
[574] | 3041 | VspKdViewCellsManager::VspKdViewCellsManager(VspKdTree *vspKdTree):
|
---|
| 3042 | ViewCellsManager(), mVspKdTree(vspKdTree)
|
---|
[440] | 3043 | {
|
---|
[574] | 3044 | environment->GetIntValue("VspKdTree.Construction.samples", mInitialSamples);
|
---|
[468] | 3045 | mVspKdTree->SetViewCellsManager(this);
|
---|
| 3046 | }
|
---|
[462] | 3047 |
|
---|
[471] | 3048 | float VspKdViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3049 | {
|
---|
[605] | 3050 | // compute view cell area / volume as subsititute for probability
|
---|
| 3051 | if (0)
|
---|
| 3052 | return GetArea(viewCell) / GetViewSpaceBox().SurfaceArea();
|
---|
| 3053 | else
|
---|
| 3054 | return GetVolume(viewCell) / GetViewSpaceBox().GetVolume();
|
---|
[440] | 3055 | }
|
---|
| 3056 |
|
---|
[462] | 3057 |
|
---|
[468] | 3058 |
|
---|
[503] | 3059 |
|
---|
[480] | 3060 | void VspKdViewCellsManager::CollectViewCells()
|
---|
| 3061 | {
|
---|
| 3062 | mVspKdTree->CollectViewCells(mViewCells);
|
---|
| 3063 | }
|
---|
[462] | 3064 |
|
---|
[570] | 3065 |
|
---|
[574] | 3066 | int VspKdViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
| 3067 | const VssRayContainer &rays)
|
---|
[440] | 3068 | {
|
---|
[441] | 3069 | // if view cells already constructed
|
---|
[440] | 3070 | if (ViewCellsConstructed())
|
---|
| 3071 | return 0;
|
---|
[503] | 3072 |
|
---|
[469] | 3073 | VssRayContainer constructionRays;
|
---|
| 3074 | VssRayContainer savedRays;
|
---|
[440] | 3075 |
|
---|
[503] | 3076 | GetRaySets(rays,
|
---|
[574] | 3077 | mInitialSamples,
|
---|
[503] | 3078 | constructionRays,
|
---|
[485] | 3079 | &savedRays);
|
---|
[503] | 3080 |
|
---|
| 3081 | Debug << "constructing vsp kd tree using "
|
---|
[469] | 3082 | << (int)constructionRays.size() << " samples" << endl;
|
---|
[452] | 3083 |
|
---|
[542] | 3084 | mVspKdTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[452] | 3085 | Debug << mVspKdTree->GetStatistics() << endl;
|
---|
| 3086 |
|
---|
[482] | 3087 | // export leaf building blocks
|
---|
| 3088 | ExportLeaves(objects, rays);
|
---|
[480] | 3089 |
|
---|
[469] | 3090 | // finally merge kd leaf building blocks to view cells
|
---|
[485] | 3091 | const int merged = mVspKdTree->MergeViewCells(rays);
|
---|
| 3092 |
|
---|
| 3093 | // collapse siblings belonging to the same view cell
|
---|
[486] | 3094 | mVspKdTree->RefineViewCells(rays);
|
---|
[485] | 3095 |
|
---|
[542] | 3096 | // collapse siblings belonging to the same view cell
|
---|
[503] | 3097 | mVspKdTree->CollapseTree();
|
---|
| 3098 |
|
---|
[482] | 3099 | // evaluale view cell stats
|
---|
| 3100 | ResetViewCells();
|
---|
[469] | 3101 |
|
---|
[660] | 3102 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[482] | 3103 |
|
---|
[485] | 3104 | long startTime = GetTime();
|
---|
[660] | 3105 |
|
---|
[469] | 3106 | // recast rest of rays
|
---|
[574] | 3107 | ComputeSampleContributions(savedRays, true, false);
|
---|
[503] | 3108 |
|
---|
| 3109 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 3110 | << " secs" << endl;
|
---|
[469] | 3111 |
|
---|
| 3112 | return merged;
|
---|
[440] | 3113 | }
|
---|
| 3114 |
|
---|
| 3115 | bool VspKdViewCellsManager::ViewCellsConstructed() const
|
---|
| 3116 | {
|
---|
| 3117 | return mVspKdTree->GetRoot() != NULL;
|
---|
| 3118 | }
|
---|
| 3119 |
|
---|
[441] | 3120 |
|
---|
[462] | 3121 | ViewCell *VspKdViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3122 | {
|
---|
| 3123 | return new VspKdViewCell(mesh);
|
---|
| 3124 | }
|
---|
| 3125 |
|
---|
[503] | 3126 | int VspKdViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
[466] | 3127 | const VssRayContainer &rays)
|
---|
[440] | 3128 | {
|
---|
[441] | 3129 | if (!ViewCellsConstructed())
|
---|
| 3130 | return 0;
|
---|
| 3131 |
|
---|
[482] | 3132 | // recalculate stats
|
---|
| 3133 | EvaluateViewCellsStats();
|
---|
| 3134 |
|
---|
[469] | 3135 | return 0;
|
---|
[440] | 3136 | }
|
---|
| 3137 |
|
---|
[482] | 3138 |
|
---|
| 3139 | void VspKdViewCellsManager::ExportLeaves(const ObjectContainer &objects,
|
---|
| 3140 | const VssRayContainer &sampleRays)
|
---|
[440] | 3141 | {
|
---|
[441] | 3142 | if (!ViewCellsConstructed())
|
---|
| 3143 | return;
|
---|
| 3144 |
|
---|
[482] | 3145 | //-- export leaf building blocks
|
---|
[503] | 3146 | Exporter *exporter = Exporter::GetExporter("vspkdtree.x3d");
|
---|
[482] | 3147 | if (!exporter)
|
---|
| 3148 | return;
|
---|
| 3149 |
|
---|
[598] | 3150 | if (mExportGeometry)
|
---|
| 3151 | exporter->ExportGeometry(objects);
|
---|
| 3152 |
|
---|
[482] | 3153 | //exporter->SetWireframe();
|
---|
| 3154 | //exporter->ExportVspKdTree(*mVspKdTree, mVspKdTree->GetStatistics().maxPvsSize);
|
---|
| 3155 | exporter->ExportVspKdTree(*mVspKdTree);
|
---|
| 3156 |
|
---|
[503] | 3157 | if (mExportRays)
|
---|
[440] | 3158 | {
|
---|
[503] | 3159 | const float prob = (float)mVisualizationSamples
|
---|
[482] | 3160 | / ((float)sampleRays.size() + Limits::Small);
|
---|
[440] | 3161 |
|
---|
[482] | 3162 | exporter->SetWireframe();
|
---|
[440] | 3163 |
|
---|
[482] | 3164 | //-- collect uniformly distributed rays
|
---|
| 3165 | VssRayContainer rays;
|
---|
[440] | 3166 |
|
---|
[482] | 3167 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
| 3168 | {
|
---|
| 3169 | if (RandomValue(0,1) < prob)
|
---|
| 3170 | rays.push_back(sampleRays[i]);
|
---|
[440] | 3171 | }
|
---|
[482] | 3172 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
[440] | 3173 | }
|
---|
| 3174 |
|
---|
[482] | 3175 | delete exporter;
|
---|
| 3176 | }
|
---|
| 3177 |
|
---|
[726] | 3178 |
|
---|
[482] | 3179 | void VspKdViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
| 3180 | const VssRayContainer &sampleRays)
|
---|
| 3181 | {
|
---|
| 3182 | if (!ViewCellsConstructed())
|
---|
| 3183 | return;
|
---|
[503] | 3184 |
|
---|
[482] | 3185 | //-- export single view cells
|
---|
| 3186 | for (int i = 0; i < 10; ++ i)
|
---|
[440] | 3187 | {
|
---|
[482] | 3188 | char s[64];
|
---|
| 3189 | sprintf(s, "vsp_viewcell%04d.x3d", i);
|
---|
| 3190 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
[503] | 3191 | const int idx =
|
---|
[482] | 3192 | (int)RandomValue(0.0, (Real)((int)mViewCells.size() - 1));
|
---|
[440] | 3193 |
|
---|
[503] | 3194 | VspKdViewCell *vc = dynamic_cast<VspKdViewCell *>(mViewCells[idx]);
|
---|
[482] | 3195 |
|
---|
| 3196 | //-- export geometry
|
---|
| 3197 | Material m;
|
---|
| 3198 | m.mDiffuseColor = RgbColor(0, 1, 1);
|
---|
[503] | 3199 |
|
---|
[482] | 3200 | exporter->SetForcedMaterial(m);
|
---|
| 3201 | exporter->SetWireframe();
|
---|
| 3202 |
|
---|
[580] | 3203 | ExportViewCellGeometry(exporter, vc);
|
---|
[482] | 3204 |
|
---|
| 3205 | //-- export stored rays
|
---|
[580] | 3206 |
|
---|
[485] | 3207 | if (mExportRays)
|
---|
[440] | 3208 | {
|
---|
[580] | 3209 | ViewCellContainer leaves;
|
---|
| 3210 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[440] | 3211 |
|
---|
[580] | 3212 | ViewCellContainer::const_iterator it,
|
---|
| 3213 | it_end = leaves.end();
|
---|
| 3214 |
|
---|
| 3215 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[482] | 3216 | {
|
---|
[580] | 3217 | VspKdViewCell *vspKdVc = dynamic_cast<VspKdViewCell *>(*it);
|
---|
| 3218 | VspKdLeaf *leaf = vspKdVc->mLeaf;
|
---|
[482] | 3219 | AxisAlignedBox3 box = mVspKdTree->GetBBox(leaf);
|
---|
[440] | 3220 |
|
---|
[482] | 3221 | VssRayContainer vssRays;
|
---|
[483] | 3222 |
|
---|
| 3223 | VssRayContainer castRays;
|
---|
| 3224 | VssRayContainer initRays;
|
---|
| 3225 |
|
---|
[482] | 3226 | leaf->GetRays(vssRays);
|
---|
[440] | 3227 |
|
---|
[482] | 3228 | VssRayContainer::const_iterator it, it_end = vssRays.end();
|
---|
[483] | 3229 | const float prop = 200.0f / (float)vssRays.size();
|
---|
[440] | 3230 |
|
---|
[482] | 3231 | for (it = vssRays.begin(); it != it_end; ++ it)
|
---|
[483] | 3232 | {
|
---|
[485] | 3233 | if (Random(1) < prop)
|
---|
[483] | 3234 | if ((*it)->mTerminationObject == NULL)
|
---|
| 3235 | castRays.push_back(*it);
|
---|
[503] | 3236 | else
|
---|
[483] | 3237 | initRays.push_back(*it);
|
---|
| 3238 | }
|
---|
| 3239 |
|
---|
| 3240 | exporter->ExportRays(castRays, RgbColor(1, 0, 0));
|
---|
| 3241 | exporter->ExportRays(initRays, RgbColor(0, 1, 0));
|
---|
[482] | 3242 | }
|
---|
| 3243 | }
|
---|
[580] | 3244 |
|
---|
[482] | 3245 | //-- output PVS of view cell
|
---|
| 3246 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 3247 | exporter->SetForcedMaterial(m);
|
---|
[440] | 3248 |
|
---|
[483] | 3249 | Intersectable::NewMail();
|
---|
| 3250 |
|
---|
[482] | 3251 | ObjectPvsMap::const_iterator it,
|
---|
| 3252 | it_end = vc->GetPvs().mEntries.end();
|
---|
| 3253 |
|
---|
| 3254 | exporter->SetFilled();
|
---|
| 3255 |
|
---|
[503] | 3256 | for (it = vc->GetPvs().mEntries.begin(); it != it_end; ++ it)
|
---|
[482] | 3257 | {
|
---|
| 3258 | Intersectable *intersect = (*it).first;
|
---|
| 3259 |
|
---|
| 3260 | if (!intersect->Mailed())
|
---|
| 3261 | {
|
---|
| 3262 | Material m = RandomMaterial();
|
---|
| 3263 | exporter->SetForcedMaterial(m);
|
---|
| 3264 |
|
---|
| 3265 | exporter->ExportIntersectable(intersect);
|
---|
| 3266 | intersect->Mail();
|
---|
[503] | 3267 | }
|
---|
[482] | 3268 | }
|
---|
| 3269 |
|
---|
| 3270 | delete exporter;
|
---|
[440] | 3271 | }
|
---|
[462] | 3272 |
|
---|
| 3273 | //-- export final view cells
|
---|
[503] | 3274 | Exporter *exporter = Exporter::GetExporter("vspkdtree_merged.x3d");
|
---|
| 3275 |
|
---|
[483] | 3276 |
|
---|
[508] | 3277 | ExportViewCellsForViz(exporter);
|
---|
[462] | 3278 |
|
---|
[503] | 3279 | if (mExportGeometry)
|
---|
[465] | 3280 | {
|
---|
| 3281 | exporter->SetFilled();
|
---|
[462] | 3282 | exporter->ExportGeometry(objects);
|
---|
[465] | 3283 | }
|
---|
[469] | 3284 |
|
---|
[503] | 3285 | if (mExportRays)
|
---|
[462] | 3286 | {
|
---|
[503] | 3287 | const float prob = (float)mVisualizationSamples
|
---|
[482] | 3288 | / ((float)sampleRays.size() + Limits::Small);
|
---|
[503] | 3289 |
|
---|
[462] | 3290 | exporter->SetWireframe();
|
---|
[503] | 3291 |
|
---|
[466] | 3292 | VssRayContainer rays;
|
---|
[503] | 3293 |
|
---|
[462] | 3294 | for (int i = 0; i < sampleRays.size(); ++ i)
|
---|
| 3295 | {
|
---|
[466] | 3296 | if (RandomValue(0,1) < prob)
|
---|
| 3297 | rays.push_back(sampleRays[i]);
|
---|
[462] | 3298 | }
|
---|
[503] | 3299 | exporter->ExportRays(rays, RgbColor(1, 0, 0));
|
---|
[462] | 3300 | }
|
---|
| 3301 |
|
---|
| 3302 | delete exporter;
|
---|
[440] | 3303 | }
|
---|
| 3304 |
|
---|
| 3305 | int VspKdViewCellsManager::GetType() const
|
---|
| 3306 | {
|
---|
| 3307 | return VSP_KD;
|
---|
| 3308 | }
|
---|
[442] | 3309 |
|
---|
[462] | 3310 |
|
---|
[469] | 3311 | int VspKdViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 3312 | const Vector3 &termination,
|
---|
| 3313 | ViewCellContainer &viewcells)
|
---|
[466] | 3314 | {
|
---|
[469] | 3315 | return mVspKdTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 3316 | }
|
---|
| 3317 |
|
---|
[477] | 3318 |
|
---|
[482] | 3319 | void VspKdViewCellsManager::ExportColor(Exporter *exporter,
|
---|
| 3320 | ViewCell *vc) const
|
---|
| 3321 | {
|
---|
| 3322 | if (mColorCode == 0) // Random color
|
---|
| 3323 | return;
|
---|
[503] | 3324 |
|
---|
[482] | 3325 | float importance = 0;
|
---|
[477] | 3326 |
|
---|
[482] | 3327 | switch (mColorCode)
|
---|
| 3328 | {
|
---|
| 3329 | case 1: // pvs
|
---|
| 3330 | {
|
---|
[503] | 3331 | importance = (float)vc->GetPvs().GetSize() /
|
---|
[660] | 3332 | (float)mCurrentViewCellsStats.maxPvs;
|
---|
[482] | 3333 | }
|
---|
| 3334 | break;
|
---|
[580] | 3335 | case 2: // merged leaves
|
---|
[482] | 3336 | {
|
---|
[744] | 3337 | const int lSize = mViewCellsTree->GetNumInitialViewCells(vc);
|
---|
[580] | 3338 | importance = (float)lSize /
|
---|
[660] | 3339 | (float)mCurrentViewCellsStats.maxLeaves;
|
---|
[482] | 3340 | }
|
---|
| 3341 | break;
|
---|
[485] | 3342 | case 3: // merged tree depth difference
|
---|
[482] | 3343 | {
|
---|
[503] | 3344 | //importance = (float)GetMaxTreeDiff(vc) /
|
---|
[482] | 3345 | // (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
| 3346 | }
|
---|
| 3347 | break;
|
---|
| 3348 | default:
|
---|
| 3349 | break;
|
---|
| 3350 | }
|
---|
| 3351 |
|
---|
| 3352 | Material m;
|
---|
| 3353 | m.mDiffuseColor.b = 1.0f;
|
---|
| 3354 | m.mDiffuseColor.r = importance;
|
---|
| 3355 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
| 3356 | //Debug << "importance: " << importance << endl;
|
---|
| 3357 | exporter->SetForcedMaterial(m);
|
---|
| 3358 | }
|
---|
| 3359 |
|
---|
| 3360 |
|
---|
[580] | 3361 | void VspKdViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 3362 | ViewCell *vc,
|
---|
[660] | 3363 | const Plane3 *clipPlane) const
|
---|
[482] | 3364 | {
|
---|
| 3365 | VspKdViewCell *kdVc = dynamic_cast<VspKdViewCell *>(vc);
|
---|
| 3366 |
|
---|
[486] | 3367 | Mesh m;
|
---|
[580] | 3368 |
|
---|
| 3369 | ViewCellContainer leaves;
|
---|
| 3370 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 3371 |
|
---|
| 3372 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 3373 |
|
---|
| 3374 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[486] | 3375 | {
|
---|
[580] | 3376 | VspKdLeaf *l = dynamic_cast<VspKdViewCell *>(*it)->mLeaf;
|
---|
| 3377 | mVspKdTree->GetBBox(l).AddBoxToMesh(&m);
|
---|
[486] | 3378 | }
|
---|
| 3379 |
|
---|
| 3380 | exporter->ExportMesh(&m);
|
---|
[482] | 3381 | }
|
---|
| 3382 |
|
---|
| 3383 |
|
---|
[503] | 3384 | void VspKdViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 3385 | {
|
---|
[551] | 3386 | //TODO
|
---|
[503] | 3387 | }
|
---|
[442] | 3388 |
|
---|
[574] | 3389 |
|
---|
[584] | 3390 | void VspKdViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 3391 | vector<MergeCandidate> &candidates)
|
---|
[580] | 3392 | {
|
---|
| 3393 | // TODO
|
---|
| 3394 | }
|
---|
[574] | 3395 |
|
---|
[580] | 3396 |
|
---|
[503] | 3397 | /**************************************************************************/
|
---|
| 3398 | /* VspBspViewCellsManager implementation */
|
---|
| 3399 | /**************************************************************************/
|
---|
[482] | 3400 |
|
---|
[503] | 3401 |
|
---|
[574] | 3402 | VspBspViewCellsManager::VspBspViewCellsManager(VspBspTree *vspBspTree):
|
---|
| 3403 | ViewCellsManager(), mVspBspTree(vspBspTree)
|
---|
[442] | 3404 | {
|
---|
[574] | 3405 | environment->GetIntValue("VspBspTree.Construction.samples", mInitialSamples);
|
---|
[478] | 3406 | mVspBspTree->SetViewCellsManager(this);
|
---|
[590] | 3407 | mVspBspTree->mViewCellsTree = mViewCellsTree;
|
---|
[442] | 3408 | }
|
---|
| 3409 |
|
---|
[477] | 3410 |
|
---|
[475] | 3411 | VspBspViewCellsManager::~VspBspViewCellsManager()
|
---|
| 3412 | {
|
---|
| 3413 | }
|
---|
| 3414 |
|
---|
[477] | 3415 |
|
---|
[471] | 3416 | float VspBspViewCellsManager::GetProbability(ViewCell *viewCell)
|
---|
[468] | 3417 | {
|
---|
[551] | 3418 | if (0 && mVspBspTree->mUseAreaForPvs)
|
---|
[547] | 3419 | return GetArea(viewCell) / GetAccVcArea();
|
---|
| 3420 | else
|
---|
| 3421 | return GetVolume(viewCell) / mViewSpaceBox.GetVolume();
|
---|
[468] | 3422 | }
|
---|
| 3423 |
|
---|
[477] | 3424 |
|
---|
[480] | 3425 | void VspBspViewCellsManager::CollectViewCells()
|
---|
| 3426 | {
|
---|
[581] | 3427 | // view cells tree constructed
|
---|
| 3428 | if (!ViewCellsTreeConstructed())
|
---|
| 3429 | {
|
---|
[590] | 3430 | mVspBspTree->CollectViewCells(mViewCells, false);
|
---|
[581] | 3431 | }
|
---|
| 3432 | else
|
---|
[664] | 3433 | { // we can use the view cells tree hierarchy to get the right set
|
---|
[600] | 3434 | mViewCellsTree->CollectBestViewCellSet(mViewCells, mNumActiveViewCells);
|
---|
[581] | 3435 | }
|
---|
[480] | 3436 | }
|
---|
| 3437 |
|
---|
| 3438 |
|
---|
[442] | 3439 | bool VspBspViewCellsManager::ViewCellsConstructed() const
|
---|
| 3440 | {
|
---|
| 3441 | return mVspBspTree->GetRoot() != NULL;
|
---|
| 3442 | }
|
---|
| 3443 |
|
---|
[462] | 3444 |
|
---|
[442] | 3445 | ViewCell *VspBspViewCellsManager::GenerateViewCell(Mesh *mesh) const
|
---|
| 3446 | {
|
---|
| 3447 | return new BspViewCell(mesh);
|
---|
| 3448 | }
|
---|
| 3449 |
|
---|
[569] | 3450 |
|
---|
[574] | 3451 | int VspBspViewCellsManager::ConstructSubdivision(const ObjectContainer &objects,
|
---|
[600] | 3452 | const VssRayContainer &rays)
|
---|
[442] | 3453 | {
|
---|
[710] | 3454 | mMaxPvsSize = (int)(mMaxPvsRatio * (float)objects.size());
|
---|
| 3455 |
|
---|
[503] | 3456 | // if view cells were already constructed
|
---|
| 3457 | if (ViewCellsConstructed())
|
---|
| 3458 | return 0;
|
---|
[442] | 3459 |
|
---|
[503] | 3460 | int sampleContributions = 0;
|
---|
| 3461 |
|
---|
| 3462 | VssRayContainer sampleRays;
|
---|
| 3463 |
|
---|
[574] | 3464 | int limit = min (mInitialSamples, (int)rays.size());
|
---|
[503] | 3465 |
|
---|
[469] | 3466 | VssRayContainer constructionRays;
|
---|
| 3467 | VssRayContainer savedRays;
|
---|
[442] | 3468 |
|
---|
[660] | 3469 | Debug << "samples used for vsp bsp subdivision: " << mInitialSamples
|
---|
[664] | 3470 | << ", actual rays: " << (int)rays.size() << endl;
|
---|
[587] | 3471 |
|
---|
[574] | 3472 | GetRaySets(rays, mInitialSamples, constructionRays, &savedRays);
|
---|
[487] | 3473 |
|
---|
[574] | 3474 | Debug << "initial rays: " << (int)constructionRays.size() << endl;
|
---|
[508] | 3475 | Debug << "saved rays: " << (int)savedRays.size() << endl;
|
---|
[485] | 3476 |
|
---|
[564] | 3477 |
|
---|
[666] | 3478 | //TODO: remove
|
---|
[667] | 3479 | if (1)
|
---|
| 3480 | mVspBspTree->Construct(constructionRays, &mViewSpaceBox);
|
---|
[666] | 3481 | else
|
---|
[667] | 3482 | mVspBspTree->Construct(rays, &mViewSpaceBox);
|
---|
| 3483 |
|
---|
[490] | 3484 | // collapse invalid regions
|
---|
[491] | 3485 | cout << "collapsing invalid tree regions ... ";
|
---|
[495] | 3486 | long startTime = GetTime();
|
---|
[503] | 3487 | int collapsedLeaves = mVspBspTree->CollapseTree();
|
---|
[587] | 3488 | Debug << "collapsed in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
| 3489 | << " seconds" << endl;
|
---|
| 3490 |
|
---|
[495] | 3491 | cout << "finished" << endl;
|
---|
[503] | 3492 |
|
---|
[660] | 3493 | // -- stats
|
---|
| 3494 | Debug << mVspBspTree->GetStatistics() << endl;
|
---|
| 3495 |
|
---|
[480] | 3496 | ResetViewCells();
|
---|
[660] | 3497 | Debug << "\nView cells after construction:\n" << mCurrentViewCellsStats << endl;
|
---|
[503] | 3498 |
|
---|
[491] | 3499 |
|
---|
[495] | 3500 | startTime = GetTime();
|
---|
[503] | 3501 |
|
---|
[491] | 3502 | cout << "Computing remaining ray contributions ... ";
|
---|
[605] | 3503 |
|
---|
[469] | 3504 | // recast rest of rays
|
---|
[605] | 3505 | if (SAMPLE_AFTER_SUBDIVISION)
|
---|
| 3506 | ComputeSampleContributions(savedRays, true, false);
|
---|
[752] | 3507 |
|
---|
[491] | 3508 | cout << "finished" << endl;
|
---|
| 3509 |
|
---|
[503] | 3510 | Debug << "Computed remaining ray contribution in " << TimeDiff(startTime, GetTime()) * 1e-3
|
---|
[485] | 3511 | << " secs" << endl;
|
---|
[442] | 3512 |
|
---|
[485] | 3513 | cout << "construction finished" << endl;
|
---|
[503] | 3514 |
|
---|
[719] | 3515 | // real meshes are contructed at this stage
|
---|
| 3516 | if (0)
|
---|
| 3517 | {
|
---|
| 3518 | cout << "finalizing view cells ... ";
|
---|
| 3519 | FinalizeViewCells(true);
|
---|
| 3520 | cout << "finished" << endl;
|
---|
| 3521 | }
|
---|
| 3522 |
|
---|
[442] | 3523 | return sampleContributions;
|
---|
| 3524 | }
|
---|
| 3525 |
|
---|
[489] | 3526 |
|
---|
[503] | 3527 | void VspBspViewCellsManager::MergeViewCells(const VssRayContainer &rays,
|
---|
| 3528 | const ObjectContainer &objects)
|
---|
[475] | 3529 | {
|
---|
[442] | 3530 | int vcSize = 0;
|
---|
| 3531 | int pvsSize = 0;
|
---|
| 3532 |
|
---|
[650] | 3533 | //-- merge view cells
|
---|
| 3534 | cout << "starting merge using " << mPostProcessSamples << " samples ... " << endl;
|
---|
| 3535 | long startTime = GetTime();
|
---|
| 3536 |
|
---|
| 3537 |
|
---|
[597] | 3538 | if (mMergeViewCells)
|
---|
| 3539 | {
|
---|
| 3540 | // TODO: should be done BEFORE the ray casting
|
---|
[710] | 3541 | // compute tree by merging the nodes based on cost heuristics
|
---|
[650] | 3542 | mViewCellsTree->ConstructMergeTree(rays, objects);
|
---|
| 3543 | }
|
---|
| 3544 | else
|
---|
| 3545 | {
|
---|
[710] | 3546 | // compute tree by merging the nodes of the spatial hierarchy
|
---|
| 3547 | ViewCell *root = ConstructSpatialMergeTree(mVspBspTree->GetRoot());
|
---|
| 3548 | mViewCellsTree->SetRoot(root);
|
---|
[752] | 3549 |
|
---|
| 3550 | // compute pvs
|
---|
| 3551 | ObjectPvs pvs;
|
---|
| 3552 | UpdatePvsForEvaluation(root, pvs);
|
---|
[650] | 3553 | }
|
---|
[442] | 3554 |
|
---|
[666] | 3555 | if (1)
|
---|
| 3556 | {
|
---|
| 3557 | char mstats[100];
|
---|
[752] | 3558 | ObjectPvs pvs;
|
---|
| 3559 |
|
---|
[666] | 3560 | environment->GetStringValue("ViewCells.mergeStats", mstats);
|
---|
| 3561 | mViewCellsTree->ExportStats(mstats);
|
---|
| 3562 | }
|
---|
[485] | 3563 |
|
---|
[650] | 3564 | //-- stats and visualizations
|
---|
| 3565 | cout << "finished merging" << endl;
|
---|
| 3566 | cout << "merged view cells in "
|
---|
| 3567 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
[503] | 3568 |
|
---|
[650] | 3569 | Debug << "Postprocessing: Merged view cells in "
|
---|
| 3570 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
| 3571 |
|
---|
| 3572 |
|
---|
[600] | 3573 | int savedColorCode = mColorCode;
|
---|
| 3574 |
|
---|
[660] | 3575 | // get currently active view cell set
|
---|
| 3576 | ResetViewCells();
|
---|
| 3577 | Debug << "\nView cells after merge:\n" << mCurrentViewCellsStats << endl;
|
---|
| 3578 |
|
---|
[485] | 3579 | //BspLeaf::NewMail();
|
---|
[667] | 3580 | if (1) // export merged view cells
|
---|
[483] | 3581 | {
|
---|
[600] | 3582 | mColorCode = 0;
|
---|
[744] | 3583 | Exporter *exporter = Exporter::GetExporter("merged_view_cells.wrl");
|
---|
[660] | 3584 |
|
---|
[485] | 3585 | cout << "exporting view cells after merge ... ";
|
---|
| 3586 |
|
---|
| 3587 | if (exporter)
|
---|
[483] | 3588 | {
|
---|
[600] | 3589 | if (0)
|
---|
| 3590 | exporter->SetWireframe();
|
---|
| 3591 | else
|
---|
| 3592 | exporter->SetFilled();
|
---|
| 3593 |
|
---|
| 3594 | ExportViewCellsForViz(exporter);
|
---|
| 3595 |
|
---|
[485] | 3596 | if (mExportGeometry)
|
---|
[483] | 3597 | {
|
---|
[485] | 3598 | Material m;
|
---|
| 3599 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3600 | exporter->SetForcedMaterial(m);
|
---|
| 3601 | exporter->SetFilled();
|
---|
[442] | 3602 |
|
---|
[485] | 3603 | exporter->ExportGeometry(objects);
|
---|
[442] | 3604 | }
|
---|
[485] | 3605 |
|
---|
[600] | 3606 | delete exporter;
|
---|
| 3607 | }
|
---|
| 3608 | cout << "finished" << endl;
|
---|
| 3609 | }
|
---|
| 3610 |
|
---|
[667] | 3611 | if (1) // export merged view cells using pvs coding
|
---|
[600] | 3612 | {
|
---|
| 3613 | mColorCode = 1;
|
---|
| 3614 |
|
---|
[744] | 3615 | Exporter *exporter = Exporter::GetExporter("merged_view_cells_pvs.wrl");
|
---|
[600] | 3616 |
|
---|
| 3617 | cout << "exporting view cells after merge (pvs size) ... ";
|
---|
| 3618 |
|
---|
| 3619 | if (exporter)
|
---|
| 3620 | {
|
---|
[598] | 3621 | if (0)
|
---|
| 3622 | exporter->SetWireframe();
|
---|
| 3623 | else
|
---|
| 3624 | exporter->SetFilled();
|
---|
| 3625 |
|
---|
| 3626 | ExportViewCellsForViz(exporter);
|
---|
| 3627 |
|
---|
[600] | 3628 | if (mExportGeometry)
|
---|
| 3629 | {
|
---|
| 3630 | Material m;
|
---|
| 3631 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 3632 | exporter->SetForcedMaterial(m);
|
---|
| 3633 | exporter->SetFilled();
|
---|
| 3634 |
|
---|
| 3635 | exporter->ExportGeometry(objects);
|
---|
| 3636 | }
|
---|
| 3637 |
|
---|
[485] | 3638 | delete exporter;
|
---|
[442] | 3639 | }
|
---|
[485] | 3640 | cout << "finished" << endl;
|
---|
[442] | 3641 | }
|
---|
[600] | 3642 |
|
---|
| 3643 | mColorCode = savedColorCode;
|
---|
| 3644 |
|
---|
[503] | 3645 | }
|
---|
[475] | 3646 |
|
---|
[503] | 3647 |
|
---|
[609] | 3648 | bool VspBspViewCellsManager::EqualToSpatialNode(ViewCell *viewCell) const
|
---|
[607] | 3649 | {
|
---|
[609] | 3650 | return GetSpatialNode(viewCell) != NULL;
|
---|
[607] | 3651 | }
|
---|
| 3652 |
|
---|
| 3653 |
|
---|
[609] | 3654 | BspNode *VspBspViewCellsManager::GetSpatialNode(ViewCell *viewCell) const
|
---|
[607] | 3655 | {
|
---|
| 3656 | if (!viewCell->IsLeaf())
|
---|
| 3657 | {
|
---|
| 3658 | BspViewCell *bspVc = dynamic_cast<BspViewCell *>(viewCell);
|
---|
| 3659 |
|
---|
[609] | 3660 | return bspVc->mLeaf;
|
---|
| 3661 | }
|
---|
[607] | 3662 | else
|
---|
| 3663 | {
|
---|
| 3664 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(viewCell);
|
---|
| 3665 |
|
---|
| 3666 | // cannot be node of binary tree
|
---|
| 3667 | if (interior->mChildren.size() != 2)
|
---|
[609] | 3668 | return NULL;
|
---|
[607] | 3669 |
|
---|
| 3670 | ViewCell *left = interior->mChildren[0];
|
---|
| 3671 | ViewCell *right = interior->mChildren[1];
|
---|
| 3672 |
|
---|
[609] | 3673 | BspNode *leftNode = GetSpatialNode(left);
|
---|
| 3674 | BspNode *rightNode = GetSpatialNode(right);
|
---|
[607] | 3675 |
|
---|
[609] | 3676 | if (leftNode && rightNode && leftNode->IsSibling(rightNode))
|
---|
[607] | 3677 | {
|
---|
[609] | 3678 | return leftNode->GetParent();
|
---|
[607] | 3679 | }
|
---|
[609] | 3680 | }
|
---|
[607] | 3681 |
|
---|
[609] | 3682 | return NULL;
|
---|
[607] | 3683 | }
|
---|
| 3684 |
|
---|
| 3685 |
|
---|
[564] | 3686 | void VspBspViewCellsManager::RefineViewCells(const VssRayContainer &rays,
|
---|
| 3687 | const ObjectContainer &objects)
|
---|
[503] | 3688 | {
|
---|
[485] | 3689 | Debug << "render time before refine:" << endl;
|
---|
| 3690 | mRenderer->RenderScene();
|
---|
[503] | 3691 | SimulationStatistics ss;
|
---|
[485] | 3692 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
| 3693 | Debug << ss << endl;
|
---|
| 3694 |
|
---|
[489] | 3695 | cout << "Refining the merged view cells ... ";
|
---|
[503] | 3696 | long startTime = GetTime();
|
---|
[485] | 3697 |
|
---|
| 3698 | // refining the merged view cells
|
---|
[580] | 3699 | const int refined = mViewCellsTree->RefineViewCells(rays, objects);
|
---|
[485] | 3700 |
|
---|
[442] | 3701 | //-- stats and visualizations
|
---|
| 3702 | cout << "finished" << endl;
|
---|
[485] | 3703 | cout << "refined " << refined << " view cells in "
|
---|
[442] | 3704 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl;
|
---|
| 3705 |
|
---|
[485] | 3706 | Debug << "Postprocessing: refined " << refined << " view cells in "
|
---|
[475] | 3707 | << TimeDiff(startTime, GetTime()) *1e-3 << " secs" << endl << endl;
|
---|
[503] | 3708 | }
|
---|
[495] | 3709 |
|
---|
[517] | 3710 |
|
---|
[503] | 3711 | int VspBspViewCellsManager::PostProcess(const ObjectContainer &objects,
|
---|
| 3712 | const VssRayContainer &rays)
|
---|
| 3713 | {
|
---|
| 3714 | if (!ViewCellsConstructed())
|
---|
| 3715 | {
|
---|
[517] | 3716 | Debug << "postprocess error: no view cells constructed" << endl;
|
---|
[503] | 3717 | return 0;
|
---|
| 3718 | }
|
---|
[520] | 3719 |
|
---|
[564] | 3720 |
|
---|
[609] | 3721 | // view cells already finished before post processing step
|
---|
| 3722 | // (i.e. because they were loaded)
|
---|
[520] | 3723 | if (mViewCellsFinished)
|
---|
[542] | 3724 | {
|
---|
[551] | 3725 | FinalizeViewCells(true);
|
---|
[542] | 3726 | EvaluateViewCellsStats();
|
---|
[577] | 3727 |
|
---|
[517] | 3728 | return 0;
|
---|
[542] | 3729 | }
|
---|
[448] | 3730 |
|
---|
[710] | 3731 | // check if new view cells turned invalid
|
---|
| 3732 | int minPvs, maxPvs;
|
---|
[564] | 3733 |
|
---|
[710] | 3734 | if (0)
|
---|
| 3735 | {
|
---|
| 3736 | minPvs = mMinPvsSize;
|
---|
| 3737 | maxPvs = mMaxPvsSize;
|
---|
| 3738 | }
|
---|
| 3739 | else
|
---|
| 3740 | {
|
---|
| 3741 | minPvs = mPruneEmptyViewCells ? 1 : 0;
|
---|
| 3742 | maxPvs = mMaxPvsSize;
|
---|
| 3743 | }
|
---|
[720] | 3744 |
|
---|
[710] | 3745 | Debug << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 3746 | cout << "setting validity, min: " << minPvs << " max: " << maxPvs << endl;
|
---|
| 3747 |
|
---|
| 3748 | SetValidity(minPvs, maxPvs);
|
---|
| 3749 |
|
---|
[574] | 3750 | // update valid view space according to valid view cells
|
---|
[720] | 3751 | if (0) mVspBspTree->ValidateTree();
|
---|
[542] | 3752 |
|
---|
[720] | 3753 | // area has to be recomputed
|
---|
[574] | 3754 | mTotalAreaValid = false;
|
---|
[517] | 3755 | VssRayContainer postProcessRays;
|
---|
[605] | 3756 | GetRaySets(rays, mPostProcessSamples, postProcessRays);
|
---|
| 3757 |
|
---|
[517] | 3758 | Debug << "post processing using " << (int)postProcessRays.size() << " samples" << endl;
|
---|
[564] | 3759 |
|
---|
[517] | 3760 |
|
---|
[552] | 3761 | // should maybe be done here to allow merge working with area or volume
|
---|
| 3762 | // and to correct the rendering statistics
|
---|
[719] | 3763 | if (0) FinalizeViewCells(false);
|
---|
[720] | 3764 |
|
---|
[597] | 3765 | //-- merge the individual view cells
|
---|
| 3766 | MergeViewCells(postProcessRays, objects);
|
---|
[591] | 3767 |
|
---|
[720] | 3768 |
|
---|
| 3769 | // only for debugging purpose: test if the subdivision is valid
|
---|
[693] | 3770 | TestSubdivision();
|
---|
| 3771 |
|
---|
[597] | 3772 | //-- refines the merged view cells
|
---|
[720] | 3773 | if (0) RefineViewCells(postProcessRays, objects);
|
---|
[568] | 3774 |
|
---|
[719] | 3775 |
|
---|
[660] | 3776 | //-- render simulation after merge + refine
|
---|
[605] | 3777 | cout << "\nevaluating bsp view cells render time before compress ... ";
|
---|
| 3778 | dynamic_cast<RenderSimulator *>(mRenderer)->RenderScene();
|
---|
| 3779 | SimulationStatistics ss;
|
---|
| 3780 | dynamic_cast<RenderSimulator *>(mRenderer)->GetStatistics(ss);
|
---|
[600] | 3781 |
|
---|
[580] | 3782 |
|
---|
[605] | 3783 | cout << " finished" << endl;
|
---|
| 3784 | cout << ss << endl;
|
---|
| 3785 | Debug << ss << endl;
|
---|
[600] | 3786 |
|
---|
| 3787 |
|
---|
| 3788 | //-- compression
|
---|
| 3789 | if (ViewCellsTreeConstructed() && mCompressViewCells)
|
---|
| 3790 | {
|
---|
| 3791 | int pvsEntries = mViewCellsTree->GetNumPvsEntries(mViewCellsTree->GetRoot());
|
---|
| 3792 | Debug << "number of entries before compress: " << pvsEntries << endl;
|
---|
| 3793 |
|
---|
[752] | 3794 | mViewCellsTree->SetViewCellsStorage(ViewCellsTree::COMPRESSED);
|
---|
[600] | 3795 |
|
---|
| 3796 | pvsEntries = mViewCellsTree->GetNumPvsEntries(mViewCellsTree->GetRoot());
|
---|
| 3797 | Debug << "number of entries after compress: " << pvsEntries << endl;
|
---|
| 3798 | }
|
---|
| 3799 |
|
---|
[660] | 3800 |
|
---|
[517] | 3801 | // collapse sibling leaves that share the same view cell
|
---|
[586] | 3802 | if (0)
|
---|
| 3803 | mVspBspTree->CollapseTree();
|
---|
| 3804 |
|
---|
[574] | 3805 | // recompute view cell list and statistics
|
---|
[520] | 3806 | ResetViewCells();
|
---|
| 3807 |
|
---|
[719] | 3808 | // compute final meshes and volume / area
|
---|
| 3809 | if (1) FinalizeViewCells(true);
|
---|
[517] | 3810 |
|
---|
[719] | 3811 |
|
---|
[508] | 3812 | // write view cells to disc
|
---|
| 3813 | if (mExportViewCells)
|
---|
| 3814 | {
|
---|
[517] | 3815 | char buff[100];
|
---|
| 3816 | environment->GetStringValue("ViewCells.filename", buff);
|
---|
| 3817 | string vcFilename(buff);
|
---|
| 3818 |
|
---|
| 3819 | ExportViewCells(buff);
|
---|
[508] | 3820 | }
|
---|
[503] | 3821 |
|
---|
| 3822 | return 0;
|
---|
[442] | 3823 | }
|
---|
| 3824 |
|
---|
[490] | 3825 |
|
---|
[442] | 3826 | int VspBspViewCellsManager::GetType() const
|
---|
| 3827 | {
|
---|
| 3828 | return VSP_BSP;
|
---|
| 3829 | }
|
---|
| 3830 |
|
---|
| 3831 |
|
---|
[650] | 3832 | ViewCell *VspBspViewCellsManager::ConstructSpatialMergeTree(BspNode *root)
|
---|
[609] | 3833 | {
|
---|
[752] | 3834 | // terminate recursion
|
---|
[650] | 3835 | if (root->IsLeaf())
|
---|
| 3836 | {
|
---|
[752] | 3837 | BspLeaf *leaf = dynamic_cast<BspLeaf *>(root);
|
---|
| 3838 | leaf->GetViewCell()->SetMergeCost(0.0f);
|
---|
| 3839 | return leaf->GetViewCell();
|
---|
[650] | 3840 | }
|
---|
| 3841 |
|
---|
[752] | 3842 |
|
---|
[650] | 3843 | BspInterior *interior = dynamic_cast<BspInterior *>(root);
|
---|
| 3844 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 3845 |
|
---|
[752] | 3846 | // evaluate merge cost for priority traversal
|
---|
[650] | 3847 | float mergeCost = 1.0f / (float)root->mTimeStamp;
|
---|
| 3848 | viewCellInterior->SetMergeCost(mergeCost);
|
---|
[610] | 3849 |
|
---|
[650] | 3850 | float volume = 0;
|
---|
| 3851 |
|
---|
| 3852 | BspNode *front = interior->GetFront();
|
---|
| 3853 | BspNode *back = interior->GetBack();
|
---|
[649] | 3854 |
|
---|
[752] | 3855 |
|
---|
| 3856 | ObjectPvs frontPvs, backPvs;
|
---|
| 3857 |
|
---|
| 3858 | //-- recursivly compute child hierarchies
|
---|
[650] | 3859 | ViewCell *backVc = ConstructSpatialMergeTree(back);
|
---|
| 3860 | ViewCell *frontVc = ConstructSpatialMergeTree(front);
|
---|
[610] | 3861 |
|
---|
[752] | 3862 |
|
---|
| 3863 | viewCellInterior->SetupChildLink(backVc);
|
---|
[650] | 3864 | viewCellInterior->SetupChildLink(frontVc);
|
---|
| 3865 |
|
---|
| 3866 | volume += backVc->GetVolume();
|
---|
| 3867 | volume += frontVc->GetVolume();
|
---|
| 3868 |
|
---|
| 3869 | viewCellInterior->SetVolume(volume);
|
---|
| 3870 |
|
---|
| 3871 | return viewCellInterior;
|
---|
[609] | 3872 | }
|
---|
| 3873 |
|
---|
| 3874 |
|
---|
[752] | 3875 |
|
---|
| 3876 | void VspBspViewCellsManager::UpdatePvsForEvaluation(ViewCell *root, ObjectPvs &pvs)
|
---|
| 3877 | {
|
---|
| 3878 | // terminate traversal
|
---|
| 3879 | if (root->IsLeaf())
|
---|
| 3880 | {
|
---|
| 3881 | pvs = root->GetPvs();
|
---|
| 3882 |
|
---|
| 3883 | root->mPvsSize = pvs.GetSize();
|
---|
| 3884 | root->mPvsSizeValid = true;
|
---|
| 3885 |
|
---|
| 3886 | return;
|
---|
| 3887 | }
|
---|
| 3888 |
|
---|
| 3889 | ViewCellInterior *interior = dynamic_cast<ViewCellInterior *>(root);
|
---|
| 3890 | ViewCellContainer::const_iterator vit, vit_end = interior->mChildren.end();
|
---|
| 3891 |
|
---|
| 3892 | vector<ObjectPvs> pvsList;
|
---|
| 3893 |
|
---|
| 3894 |
|
---|
| 3895 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit)
|
---|
| 3896 | {
|
---|
| 3897 | ObjectPvs objPvs;
|
---|
| 3898 |
|
---|
| 3899 | //-- recursivly compute child pvss
|
---|
| 3900 | UpdatePvsForEvaluation(*vit, objPvs);
|
---|
| 3901 |
|
---|
| 3902 | // store pvs in vector
|
---|
| 3903 | pvsList.push_back(objPvs);
|
---|
| 3904 | }
|
---|
| 3905 |
|
---|
| 3906 | #if 1
|
---|
| 3907 | Intersectable::NewMail();
|
---|
| 3908 |
|
---|
| 3909 | //-- faster way of computing pvs:
|
---|
| 3910 | // construct merged pvs by adding
|
---|
| 3911 | // and only those of the next pvs which were not mailed.
|
---|
| 3912 | // note: sumpdf is not correct!!
|
---|
| 3913 | vector<ObjectPvs>::iterator oit = pvsList.begin();
|
---|
| 3914 |
|
---|
| 3915 | for (vit = interior->mChildren.begin(); vit != vit_end; ++ vit, ++ oit)
|
---|
| 3916 | {
|
---|
| 3917 | ObjectPvsMap::iterator pit, pit_end = (*oit).mEntries.end();
|
---|
| 3918 |
|
---|
| 3919 | for (pit = (*oit).mEntries.begin(); pit != pit_end; ++ pit)
|
---|
| 3920 | {
|
---|
| 3921 | Intersectable *intersect = (*pit).first;
|
---|
| 3922 |
|
---|
| 3923 | if (!intersect->Mailed())
|
---|
| 3924 | {
|
---|
| 3925 | pvs.AddSample(intersect, (*pit).second.mSumPdf);
|
---|
| 3926 | intersect->Mail();
|
---|
| 3927 | }
|
---|
| 3928 | }
|
---|
| 3929 | }
|
---|
| 3930 |
|
---|
| 3931 | // store pvs in this node
|
---|
| 3932 | if (mViewCellsTree->ViewCellsStorage() == ViewCellsTree::PVS_IN_INTERIORS)
|
---|
| 3933 | {
|
---|
| 3934 | interior->mPvs = pvs;
|
---|
| 3935 | }
|
---|
| 3936 |
|
---|
| 3937 | // set new pvs size
|
---|
| 3938 | interior->mPvsSize = pvs.GetSize();
|
---|
| 3939 | interior->mPvsSizeValid = true;
|
---|
| 3940 |
|
---|
| 3941 | #else
|
---|
| 3942 | // really merge cells: slow put sumpdf is correct
|
---|
| 3943 | ViewCellInterior *viewCellInterior = new ViewCellInterior();
|
---|
| 3944 |
|
---|
| 3945 | viewCellInterior->GetPvs().Merge(backVc->GetPvs());
|
---|
| 3946 | viewCellInterior->GetPvs().Merge(frontVc->GetPvs());
|
---|
| 3947 | #endif
|
---|
| 3948 |
|
---|
| 3949 | }
|
---|
| 3950 |
|
---|
| 3951 |
|
---|
[490] | 3952 | bool VspBspViewCellsManager::GetViewPoint(Vector3 &viewPoint) const
|
---|
| 3953 | {
|
---|
| 3954 | if (!ViewCellsConstructed())
|
---|
| 3955 | return ViewCellsManager::GetViewPoint(viewPoint);
|
---|
| 3956 |
|
---|
| 3957 | // TODO: set reasonable limit
|
---|
| 3958 | const int limit = 20;
|
---|
| 3959 |
|
---|
| 3960 | for (int i = 0; i < limit; ++ i)
|
---|
| 3961 | {
|
---|
[542] | 3962 | viewPoint = mViewSpaceBox.GetRandomPoint();
|
---|
[490] | 3963 | if (mVspBspTree->ViewPointValid(viewPoint))
|
---|
| 3964 | {
|
---|
| 3965 | return true;
|
---|
| 3966 | }
|
---|
| 3967 | }
|
---|
| 3968 | Debug << "failed to find valid view point, taking " << viewPoint << endl;
|
---|
| 3969 | return false;
|
---|
| 3970 | }
|
---|
| 3971 |
|
---|
| 3972 |
|
---|
| 3973 | bool VspBspViewCellsManager::ViewPointValid(const Vector3 &viewPoint) const
|
---|
| 3974 | {
|
---|
[569] | 3975 | // $$JB -> implemented in viewcellsmanager (slower, but allows dynamic
|
---|
| 3976 | // validy update in preprocessor for all managers)
|
---|
| 3977 | return ViewCellsManager::ViewPointValid(viewPoint);
|
---|
[570] | 3978 |
|
---|
[569] | 3979 | // return mViewSpaceBox.IsInside(viewPoint) &&
|
---|
| 3980 | // mVspBspTree->ViewPointValid(viewPoint);
|
---|
[490] | 3981 | }
|
---|
| 3982 |
|
---|
| 3983 |
|
---|
[442] | 3984 | void VspBspViewCellsManager::Visualize(const ObjectContainer &objects,
|
---|
[466] | 3985 | const VssRayContainer &sampleRays)
|
---|
[442] | 3986 | {
|
---|
| 3987 | if (!ViewCellsConstructed())
|
---|
| 3988 | return;
|
---|
| 3989 |
|
---|
[485] | 3990 | VssRayContainer visRays;
|
---|
| 3991 | GetRaySets(sampleRays, mVisualizationSamples, visRays);
|
---|
[483] | 3992 |
|
---|
[600] | 3993 |
|
---|
[651] | 3994 | if (1) // export view cells
|
---|
[612] | 3995 | { // hack pvs
|
---|
[600] | 3996 | int savedColorCode = mColorCode;
|
---|
[651] | 3997 | mColorCode = 0;
|
---|
[712] | 3998 | Exporter *exporter = Exporter::GetExporter("final_view_cells.wrl");
|
---|
[600] | 3999 |
|
---|
[442] | 4000 | if (exporter)
|
---|
| 4001 | {
|
---|
[580] | 4002 | cout << "exporting view cells after post process ... ";
|
---|
| 4003 |
|
---|
[600] | 4004 | if (0)
|
---|
[542] | 4005 | {
|
---|
| 4006 | exporter->SetWireframe();
|
---|
| 4007 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4008 | exporter->SetFilled();
|
---|
| 4009 | }
|
---|
| 4010 |
|
---|
[485] | 4011 | if (mExportGeometry)
|
---|
[542] | 4012 | {
|
---|
[485] | 4013 | exporter->ExportGeometry(objects);
|
---|
[542] | 4014 | }
|
---|
[489] | 4015 |
|
---|
| 4016 | // export rays
|
---|
[490] | 4017 | if (mExportRays)
|
---|
[489] | 4018 | {
|
---|
[490] | 4019 | exporter->ExportRays(visRays, RgbColor(0, 1, 0));
|
---|
| 4020 | }
|
---|
[564] | 4021 |
|
---|
[508] | 4022 | ExportViewCellsForViz(exporter);
|
---|
[442] | 4023 | delete exporter;
|
---|
[580] | 4024 | cout << "finished" << endl;
|
---|
[442] | 4025 | }
|
---|
[600] | 4026 |
|
---|
| 4027 | mColorCode = savedColorCode;
|
---|
[557] | 4028 | }
|
---|
[503] | 4029 |
|
---|
[600] | 4030 | if (0)
|
---|
[577] | 4031 | {
|
---|
| 4032 | cout << "exporting depth map ... ";
|
---|
| 4033 |
|
---|
| 4034 | Exporter *exporter = Exporter::GetExporter("depth_map.x3d");
|
---|
| 4035 | if (exporter)
|
---|
| 4036 | {
|
---|
| 4037 | if (1)
|
---|
| 4038 | {
|
---|
| 4039 | exporter->SetWireframe();
|
---|
| 4040 | exporter->ExportBox(mViewSpaceBox);
|
---|
| 4041 | exporter->SetFilled();
|
---|
| 4042 | }
|
---|
| 4043 |
|
---|
| 4044 | if (mExportGeometry)
|
---|
| 4045 | {
|
---|
| 4046 | exporter->ExportGeometry(objects);
|
---|
| 4047 | }
|
---|
| 4048 |
|
---|
| 4049 | const int maxDepth = mVspBspTree->mBspStats.maxDepth;
|
---|
| 4050 |
|
---|
| 4051 | ViewCellContainer::const_iterator vit, vit_end = mViewCells.end();
|
---|
| 4052 |
|
---|
| 4053 | for (vit = mViewCells.begin(); vit != mViewCells.end(); ++ vit)
|
---|
| 4054 | {
|
---|
[582] | 4055 | ViewCell *vc = *vit;
|
---|
[577] | 4056 |
|
---|
[580] | 4057 | ViewCellContainer leaves;
|
---|
| 4058 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[577] | 4059 |
|
---|
[580] | 4060 | ViewCellContainer::const_iterator lit, lit_end = leaves.end();
|
---|
| 4061 |
|
---|
| 4062 | for (lit = leaves.begin(); lit != lit_end; ++ lit)
|
---|
[577] | 4063 | {
|
---|
[580] | 4064 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*lit)->mLeaf;
|
---|
[577] | 4065 |
|
---|
| 4066 | Material m;
|
---|
| 4067 |
|
---|
| 4068 | float relDepth = (float)leaf->GetDepth() / (float)maxDepth;
|
---|
| 4069 | m.mDiffuseColor.r = relDepth;
|
---|
| 4070 | m.mDiffuseColor.g = 0.0f;
|
---|
| 4071 | m.mDiffuseColor.b = 1.0f - relDepth;
|
---|
| 4072 |
|
---|
| 4073 | exporter->SetForcedMaterial(m);
|
---|
| 4074 |
|
---|
| 4075 |
|
---|
| 4076 | BspNodeGeometry geom;
|
---|
| 4077 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
[678] | 4078 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[577] | 4079 | }
|
---|
| 4080 | }
|
---|
| 4081 |
|
---|
| 4082 | delete exporter;
|
---|
| 4083 | }
|
---|
| 4084 |
|
---|
| 4085 |
|
---|
| 4086 | cout << "finished" << endl;
|
---|
| 4087 | }
|
---|
| 4088 |
|
---|
[442] | 4089 | //-- visualization of the BSP splits
|
---|
| 4090 | bool exportSplits = false;
|
---|
[489] | 4091 | environment->GetBoolValue("VspBspTree.Visualization.exportSplits", exportSplits);
|
---|
[503] | 4092 |
|
---|
[442] | 4093 | if (exportSplits)
|
---|
| 4094 | {
|
---|
| 4095 | cout << "exporting splits ... ";
|
---|
[485] | 4096 | ExportSplits(objects, visRays);
|
---|
[442] | 4097 | cout << "finished" << endl;
|
---|
| 4098 | }
|
---|
| 4099 |
|
---|
[542] | 4100 | //-- export single view cells
|
---|
[485] | 4101 | ExportBspPvs(objects, visRays);
|
---|
[442] | 4102 | }
|
---|
| 4103 |
|
---|
[503] | 4104 |
|
---|
[485] | 4105 | void VspBspViewCellsManager::ExportSplits(const ObjectContainer &objects,
|
---|
| 4106 | const VssRayContainer &rays)
|
---|
[442] | 4107 | {
|
---|
| 4108 | Exporter *exporter = Exporter::GetExporter("bsp_splits.x3d");
|
---|
| 4109 |
|
---|
[503] | 4110 | if (exporter)
|
---|
| 4111 | {
|
---|
| 4112 | Material m;
|
---|
[442] | 4113 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4114 | exporter->SetForcedMaterial(m);
|
---|
| 4115 | exporter->SetWireframe();
|
---|
[503] | 4116 |
|
---|
[448] | 4117 | exporter->ExportBspSplits(*mVspBspTree, true);
|
---|
[442] | 4118 |
|
---|
| 4119 | // take forced material, else big scenes cannot be viewed
|
---|
| 4120 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4121 | exporter->SetForcedMaterial(m);
|
---|
| 4122 | exporter->SetFilled();
|
---|
| 4123 |
|
---|
| 4124 | exporter->ResetForcedMaterial();
|
---|
[503] | 4125 |
|
---|
[442] | 4126 | // export rays
|
---|
[485] | 4127 | if (mExportRays)
|
---|
| 4128 | exporter->ExportRays(rays, RgbColor(1, 1, 0));
|
---|
[503] | 4129 |
|
---|
[485] | 4130 | if (mExportGeometry)
|
---|
[442] | 4131 | exporter->ExportGeometry(objects);
|
---|
| 4132 |
|
---|
| 4133 | delete exporter;
|
---|
| 4134 | }
|
---|
| 4135 | }
|
---|
| 4136 |
|
---|
[503] | 4137 |
|
---|
[485] | 4138 | void VspBspViewCellsManager::ExportBspPvs(const ObjectContainer &objects,
|
---|
| 4139 | const VssRayContainer &rays)
|
---|
[442] | 4140 | {
|
---|
[639] | 4141 | const int leafOut = 20;
|
---|
[503] | 4142 |
|
---|
[442] | 4143 | ViewCell::NewMail();
|
---|
[503] | 4144 |
|
---|
[639] | 4145 | cout << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
| 4146 | Debug << "visualization using " << (int)rays.size() << " samples" << endl;
|
---|
[475] | 4147 | Debug << "\nOutput view cells: " << endl;
|
---|
[503] | 4148 |
|
---|
[694] | 4149 | const bool sortViewCells = true;
|
---|
| 4150 |
|
---|
[485] | 4151 | // sort view cells to visualize the largest view cells
|
---|
[694] | 4152 | if (sortViewCells)
|
---|
[587] | 4153 | stable_sort(mViewCells.begin(), mViewCells.end(), vc_gt);
|
---|
[639] | 4154 |
|
---|
[503] | 4155 | int limit = min(leafOut, (int)mViewCells.size());
|
---|
[483] | 4156 |
|
---|
[639] | 4157 | int raysOut = 0;
|
---|
[587] | 4158 |
|
---|
[485] | 4159 | //-- some rays for output
|
---|
[478] | 4160 | for (int i = 0; i < limit; ++ i)
|
---|
[442] | 4161 | {
|
---|
[478] | 4162 | cout << "creating output for view cell " << i << " ... ";
|
---|
[503] | 4163 |
|
---|
[582] | 4164 | ViewCell *vc;
|
---|
[574] | 4165 |
|
---|
[694] | 4166 | if (sortViewCells) // largest view cell pvs first
|
---|
[582] | 4167 | vc = mViewCells[i];
|
---|
[574] | 4168 | else
|
---|
[639] | 4169 | vc = mViewCells[(int)RandomValue(0, (float)mViewCells.size() - 1)];
|
---|
[442] | 4170 |
|
---|
[639] | 4171 | //bspLeaves[j]->Mail();
|
---|
| 4172 | char s[64]; sprintf(s, "bsp-pvs%04d.x3d", i);
|
---|
| 4173 | Exporter *exporter = Exporter::GetExporter(s);
|
---|
| 4174 |
|
---|
| 4175 | Debug << i << ": pvs size=" << (int)mViewCellsTree->GetPvsSize(vc) << endl;
|
---|
[587] | 4176 |
|
---|
[639] | 4177 | if (1 || mExportRays)
|
---|
[442] | 4178 | {
|
---|
[694] | 4179 | // output rays stored with the view cells during subdivision
|
---|
[643] | 4180 | if (0)
|
---|
[442] | 4181 | {
|
---|
[639] | 4182 | VssRayContainer vcRays;
|
---|
| 4183 | VssRayContainer collectRays;
|
---|
| 4184 |
|
---|
| 4185 | raysOut = min((int)rays.size(), 100);
|
---|
| 4186 |
|
---|
| 4187 | // collect intial view cells
|
---|
| 4188 | ViewCellContainer leaves;
|
---|
| 4189 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4190 |
|
---|
| 4191 | ViewCellContainer::const_iterator vit, vit_end = leaves.end();
|
---|
| 4192 |
|
---|
| 4193 | for (vit = leaves.begin(); vit != vit_end; ++ vit)
|
---|
[574] | 4194 | {
|
---|
[639] | 4195 | BspLeaf *vcLeaf = dynamic_cast<BspViewCell *>(*vit)->mLeaf;
|
---|
| 4196 |
|
---|
| 4197 | VssRayContainer::const_iterator rit, rit_end = vcLeaf->mVssRays.end();
|
---|
[587] | 4198 |
|
---|
[639] | 4199 | for (rit = vcLeaf->mVssRays.begin(); rit != rit_end; ++ rit)
|
---|
| 4200 | {
|
---|
| 4201 | collectRays.push_back(*rit);
|
---|
| 4202 | }
|
---|
[574] | 4203 | }
|
---|
[639] | 4204 |
|
---|
| 4205 | VssRayContainer::const_iterator rit, rit_end = collectRays.end();
|
---|
| 4206 |
|
---|
| 4207 | for (rit = collectRays.begin(); rit != rit_end; ++ rit)
|
---|
| 4208 | {
|
---|
| 4209 | float p = RandomValue(0.0f, (float)collectRays.size());
|
---|
| 4210 |
|
---|
| 4211 | if (p < raysOut)
|
---|
| 4212 | vcRays.push_back(*rit);
|
---|
| 4213 | }
|
---|
| 4214 | //-- export rays piercing this view cell
|
---|
| 4215 | exporter->ExportRays(vcRays, RgbColor(1, 1, 1));
|
---|
[442] | 4216 | }
|
---|
[651] | 4217 |
|
---|
[694] | 4218 | // associate new rays with output view cell
|
---|
[643] | 4219 | if (1)
|
---|
[639] | 4220 | {
|
---|
| 4221 | VssRayContainer vcRays;
|
---|
| 4222 | raysOut = min((int)rays.size(), mVisualizationSamples);
|
---|
| 4223 | // check whether we can add the current ray to the output rays
|
---|
| 4224 | for (int k = 0; k < raysOut; ++ k)
|
---|
| 4225 | {
|
---|
| 4226 | VssRay *ray = rays[k];
|
---|
| 4227 | for (int j = 0; j < (int)ray->mViewCells.size(); ++ j)
|
---|
| 4228 | {
|
---|
| 4229 | ViewCell *rayvc = ray->mViewCells[j];
|
---|
| 4230 |
|
---|
| 4231 | if (rayvc == vc)
|
---|
| 4232 | vcRays.push_back(ray);
|
---|
| 4233 | }
|
---|
| 4234 | }
|
---|
| 4235 |
|
---|
| 4236 | //-- export rays piercing this view cell
|
---|
| 4237 | exporter->ExportRays(vcRays, RgbColor(1, 1, 0));
|
---|
| 4238 | }
|
---|
| 4239 |
|
---|
[442] | 4240 | }
|
---|
[639] | 4241 |
|
---|
[574] | 4242 |
|
---|
[478] | 4243 | exporter->SetWireframe();
|
---|
[442] | 4244 |
|
---|
[478] | 4245 | Material m;//= RandomMaterial();
|
---|
| 4246 | m.mDiffuseColor = RgbColor(0, 1, 0);
|
---|
| 4247 | exporter->SetForcedMaterial(m);
|
---|
[442] | 4248 |
|
---|
[580] | 4249 | ExportViewCellGeometry(exporter, vc);
|
---|
[639] | 4250 |
|
---|
| 4251 | exporter->SetFilled();
|
---|
[503] | 4252 |
|
---|
[639] | 4253 |
|
---|
[574] | 4254 | if (1)
|
---|
| 4255 | {
|
---|
[639] | 4256 | ObjectPvsMap::const_iterator oit,
|
---|
| 4257 | oit_end = vc->GetPvs().mEntries.end();
|
---|
[483] | 4258 |
|
---|
[580] | 4259 |
|
---|
[639] | 4260 | exporter->SetFilled();
|
---|
[580] | 4261 |
|
---|
[639] | 4262 | Intersectable::NewMail();
|
---|
[574] | 4263 |
|
---|
[639] | 4264 | // output PVS of view cell
|
---|
| 4265 | for (oit = vc->GetPvs().mEntries.begin(); oit != oit_end; ++ oit)
|
---|
| 4266 | {
|
---|
| 4267 | Intersectable *intersect = (*oit).first;
|
---|
[442] | 4268 |
|
---|
[639] | 4269 | if (!intersect->Mailed())
|
---|
| 4270 | {
|
---|
[643] | 4271 | m = RandomMaterial();
|
---|
| 4272 | exporter->SetForcedMaterial(m);
|
---|
[442] | 4273 |
|
---|
[639] | 4274 | exporter->ExportIntersectable(intersect);
|
---|
| 4275 | intersect->Mail();
|
---|
| 4276 | }
|
---|
[503] | 4277 | }
|
---|
[442] | 4278 | }
|
---|
[639] | 4279 | else
|
---|
| 4280 | {
|
---|
[643] | 4281 | m.mDiffuseColor = RgbColor(1, 0, 0);
|
---|
| 4282 | exporter->SetForcedMaterial(m);
|
---|
| 4283 |
|
---|
[639] | 4284 | exporter->ExportGeometry(objects);
|
---|
| 4285 | }
|
---|
[503] | 4286 |
|
---|
[478] | 4287 | DEL_PTR(exporter);
|
---|
| 4288 | cout << "finished" << endl;
|
---|
[442] | 4289 | }
|
---|
[475] | 4290 |
|
---|
| 4291 | Debug << endl;
|
---|
[442] | 4292 | }
|
---|
| 4293 |
|
---|
| 4294 |
|
---|
[697] | 4295 | int VspBspViewCellsManager::ComputeBoxIntersections(const AxisAlignedBox3 &box, ViewCellContainer &viewCells) const
|
---|
| 4296 | {
|
---|
| 4297 | return mVspBspTree->ComputeBoxIntersections(box, viewCells);
|
---|
| 4298 | }
|
---|
| 4299 |
|
---|
| 4300 |
|
---|
[469] | 4301 | int VspBspViewCellsManager::CastLineSegment(const Vector3 &origin,
|
---|
| 4302 | const Vector3 &termination,
|
---|
| 4303 | ViewCellContainer &viewcells)
|
---|
[466] | 4304 | {
|
---|
[469] | 4305 | return mVspBspTree->CastLineSegment(origin, termination, viewcells);
|
---|
[466] | 4306 | }
|
---|
[482] | 4307 |
|
---|
| 4308 |
|
---|
[503] | 4309 | void VspBspViewCellsManager::ExportColor(Exporter *exporter,
|
---|
[482] | 4310 | ViewCell *vc) const
|
---|
| 4311 | {
|
---|
[564] | 4312 | const bool vcValid = CheckValidity(vc, mMinPvsSize, mMaxPvsSize);
|
---|
[503] | 4313 |
|
---|
[482] | 4314 | float importance = 0;
|
---|
[564] | 4315 | static Material m;
|
---|
| 4316 |
|
---|
[482] | 4317 | switch (mColorCode)
|
---|
| 4318 | {
|
---|
[564] | 4319 | case 0: // Random
|
---|
| 4320 | {
|
---|
| 4321 | if (vcValid)
|
---|
| 4322 | {
|
---|
[598] | 4323 | m.mDiffuseColor.r = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 4324 | m.mDiffuseColor.g = 0.5f + RandomValue(0.0f, 0.5f);
|
---|
| 4325 | m.mDiffuseColor.b = 0.5f + RandomValue(0.f, 0.5f);
|
---|
[564] | 4326 | }
|
---|
| 4327 | else
|
---|
| 4328 | {
|
---|
| 4329 | m.mDiffuseColor.r = 0.0f;
|
---|
| 4330 | m.mDiffuseColor.g = 1.0f;
|
---|
| 4331 | m.mDiffuseColor.b = 0.0f;
|
---|
| 4332 | }
|
---|
[591] | 4333 |
|
---|
| 4334 | exporter->SetForcedMaterial(m);
|
---|
| 4335 | return;
|
---|
[564] | 4336 | }
|
---|
[591] | 4337 |
|
---|
[482] | 4338 | case 1: // pvs
|
---|
| 4339 | {
|
---|
[503] | 4340 | importance = (float)vc->GetPvs().GetSize() /
|
---|
[744] | 4341 | #if 1 // hack for result
|
---|
[660] | 4342 | (float)mCurrentViewCellsStats.maxPvs;
|
---|
[744] | 4343 | #else
|
---|
| 4344 | 463.0f;
|
---|
| 4345 | #endif
|
---|
[482] | 4346 | }
|
---|
| 4347 | break;
|
---|
| 4348 | case 2: // merges
|
---|
| 4349 | {
|
---|
[736] | 4350 | int lSize = mViewCellsTree->GetNumInitialViewCells(vc);
|
---|
[660] | 4351 | importance = (float)lSize / (float)mCurrentViewCellsStats.maxLeaves;
|
---|
[482] | 4352 | }
|
---|
| 4353 | break;
|
---|
| 4354 | case 3: // merge tree differene
|
---|
| 4355 | {
|
---|
[503] | 4356 | importance = (float)GetMaxTreeDiff(vc) /
|
---|
[482] | 4357 | (float)(mVspBspTree->GetStatistics().maxDepth * 2);
|
---|
[547] | 4358 |
|
---|
[482] | 4359 | }
|
---|
| 4360 | break;
|
---|
| 4361 | default:
|
---|
| 4362 | break;
|
---|
| 4363 | }
|
---|
| 4364 |
|
---|
[564] | 4365 | // special color code for invalid view cells
|
---|
[482] | 4366 | m.mDiffuseColor.r = importance;
|
---|
| 4367 | m.mDiffuseColor.g = 1.0f - m.mDiffuseColor.r;
|
---|
[564] | 4368 | m.mDiffuseColor.b = vcValid ? 1.0f : 0.0f;
|
---|
[547] | 4369 |
|
---|
[482] | 4370 | //Debug << "importance: " << importance << endl;
|
---|
| 4371 | exporter->SetForcedMaterial(m);
|
---|
| 4372 | }
|
---|
| 4373 |
|
---|
| 4374 |
|
---|
[580] | 4375 | void VspBspViewCellsManager::ExportViewCellGeometry(Exporter *exporter,
|
---|
[591] | 4376 | ViewCell *vc,
|
---|
[660] | 4377 | const Plane3 *clipPlane) const
|
---|
[482] | 4378 | {
|
---|
[542] | 4379 | if (vc->GetMesh())
|
---|
[503] | 4380 | {
|
---|
| 4381 | exporter->ExportMesh(vc->GetMesh());
|
---|
[590] | 4382 |
|
---|
[503] | 4383 | return;
|
---|
| 4384 | }
|
---|
| 4385 |
|
---|
[591] | 4386 |
|
---|
[660] | 4387 | if (clipPlane)
|
---|
[591] | 4388 | {
|
---|
| 4389 | ViewCellContainer leaves;
|
---|
| 4390 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
| 4391 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4392 |
|
---|
| 4393 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4394 | {
|
---|
| 4395 | BspNodeGeometry geom;
|
---|
| 4396 |
|
---|
| 4397 | BspNodeGeometry front;
|
---|
| 4398 | BspNodeGeometry back;
|
---|
| 4399 |
|
---|
| 4400 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 4401 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4402 |
|
---|
[710] | 4403 | const float eps = 0.00000001f;
|
---|
| 4404 | const int cf = geom.Side(*clipPlane, eps);
|
---|
[682] | 4405 |
|
---|
[710] | 4406 | if (cf == -1)
|
---|
[682] | 4407 | {
|
---|
| 4408 | exporter->ExportPolygons(geom.GetPolys());
|
---|
| 4409 | }
|
---|
[710] | 4410 | else if (cf == 0)
|
---|
[684] | 4411 | {
|
---|
[682] | 4412 | geom.SplitGeometry(front,
|
---|
| 4413 | back,
|
---|
| 4414 | *clipPlane,
|
---|
| 4415 | mViewSpaceBox,
|
---|
[710] | 4416 | eps);
|
---|
[682] | 4417 |
|
---|
[694] | 4418 | //Debug << "geo size: " << geom.Size() << endl;
|
---|
| 4419 | //Debug << "size b: " << back.Size() << " f: " << front.Size() << endl;
|
---|
[683] | 4420 | if (back.Valid())
|
---|
| 4421 | {
|
---|
[682] | 4422 | exporter->ExportPolygons(back.GetPolys());
|
---|
[708] | 4423 | }
|
---|
[684] | 4424 | }
|
---|
[591] | 4425 | }
|
---|
| 4426 | }
|
---|
| 4427 | else
|
---|
| 4428 | {
|
---|
| 4429 | BspNodeGeometry geom;
|
---|
| 4430 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
| 4431 |
|
---|
[678] | 4432 | exporter->ExportPolygons(geom.GetPolys());
|
---|
[591] | 4433 | }
|
---|
[482] | 4434 | }
|
---|
| 4435 |
|
---|
| 4436 |
|
---|
| 4437 | int VspBspViewCellsManager::GetMaxTreeDiff(ViewCell *vc) const
|
---|
| 4438 | {
|
---|
[580] | 4439 | ViewCellContainer leaves;
|
---|
| 4440 | mViewCellsTree->CollectLeaves(vc, leaves);
|
---|
[482] | 4441 |
|
---|
| 4442 | int maxDist = 0;
|
---|
[580] | 4443 |
|
---|
[482] | 4444 | // compute max height difference
|
---|
[580] | 4445 | for (int i = 0; i < (int)leaves.size(); ++ i)
|
---|
| 4446 | for (int j = 0; j < (int)leaves.size(); ++ j)
|
---|
[482] | 4447 | {
|
---|
[580] | 4448 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(leaves[i])->mLeaf;
|
---|
[482] | 4449 |
|
---|
| 4450 | if (i != j)
|
---|
| 4451 | {
|
---|
[580] | 4452 | BspLeaf *leaf2 =dynamic_cast<BspViewCell *>(leaves[j])->mLeaf;
|
---|
[482] | 4453 | int dist = mVspBspTree->TreeDistance(leaf, leaf2);
|
---|
| 4454 | if (dist > maxDist)
|
---|
| 4455 | maxDist = dist;
|
---|
| 4456 | }
|
---|
| 4457 | }
|
---|
[580] | 4458 |
|
---|
[492] | 4459 | return maxDist;
|
---|
| 4460 | }
|
---|
[482] | 4461 |
|
---|
[492] | 4462 |
|
---|
[569] | 4463 | ViewCell *VspBspViewCellsManager::GetViewCell(const Vector3 &point) const
|
---|
[492] | 4464 | {
|
---|
[508] | 4465 | if (!mVspBspTree)
|
---|
| 4466 | return NULL;
|
---|
[572] | 4467 |
|
---|
| 4468 | if (!mViewSpaceBox.IsInside(point))
|
---|
| 4469 | return NULL;
|
---|
| 4470 |
|
---|
[508] | 4471 | return mVspBspTree->GetViewCell(point);
|
---|
[492] | 4472 | }
|
---|
[503] | 4473 |
|
---|
| 4474 |
|
---|
| 4475 | void VspBspViewCellsManager::CreateMesh(ViewCell *vc)
|
---|
| 4476 | {
|
---|
[726] | 4477 | //if (vc->GetMesh()) delete vc->GetMesh();
|
---|
[503] | 4478 | BspNodeGeometry geom;
|
---|
[590] | 4479 |
|
---|
| 4480 | mVspBspTree->ConstructGeometry(vc, geom);
|
---|
[582] | 4481 |
|
---|
[503] | 4482 | Mesh *mesh = new Mesh();
|
---|
| 4483 | geom.AddToMesh(*mesh);
|
---|
| 4484 | vc->SetMesh(mesh);
|
---|
[726] | 4485 | // put mesh into mesh container so we can savely delete it
|
---|
[503] | 4486 | mMeshContainer.push_back(mesh);
|
---|
| 4487 | }
|
---|
[508] | 4488 |
|
---|
| 4489 |
|
---|
[577] | 4490 | ViewCellsManager *ViewCellsManager::LoadViewCells(const string filename,
|
---|
| 4491 | ObjectContainer *objects)
|
---|
[508] | 4492 | {
|
---|
| 4493 | ViewCellsParser parser;
|
---|
[564] | 4494 |
|
---|
[577] | 4495 | ViewCellsManager *vm = NULL;
|
---|
[564] | 4496 |
|
---|
[577] | 4497 | if (parser.ParseFile(filename, &vm, objects))
|
---|
| 4498 | {
|
---|
[590] | 4499 | //vm->PrepareLoadedViewCells();
|
---|
[577] | 4500 | vm->ResetViewCells();
|
---|
[564] | 4501 |
|
---|
[577] | 4502 | vm->mViewCellsFinished = true;
|
---|
| 4503 | vm->mMaxPvsSize = (int)objects->size();
|
---|
[517] | 4504 |
|
---|
[719] | 4505 | // create the meshes and compute volumes
|
---|
[577] | 4506 | vm->FinalizeViewCells(true);
|
---|
[564] | 4507 |
|
---|
[685] | 4508 | vm->mViewCellsTree->AssignRandomColors();
|
---|
[577] | 4509 | Debug << (int)vm->mViewCells.size() << " view cells loaded" << endl;
|
---|
| 4510 | }
|
---|
| 4511 | else
|
---|
| 4512 | {
|
---|
| 4513 | Debug << "failed loading view cells" << endl;
|
---|
| 4514 | DEL_PTR(vm);
|
---|
| 4515 | }
|
---|
| 4516 |
|
---|
| 4517 | return vm;
|
---|
[508] | 4518 | }
|
---|
| 4519 |
|
---|
| 4520 |
|
---|
| 4521 | inline bool ilt(Intersectable *obj1, Intersectable *obj2)
|
---|
| 4522 | {
|
---|
| 4523 | return obj1->mId < obj2->mId;
|
---|
| 4524 | }
|
---|
| 4525 |
|
---|
| 4526 |
|
---|
| 4527 | bool VspBspViewCellsManager::ExportViewCells(const string filename)
|
---|
| 4528 | {
|
---|
[564] | 4529 | cout << "exporting view cells to xml ... ";
|
---|
[508] | 4530 | std::ofstream stream;
|
---|
| 4531 |
|
---|
[577] | 4532 | // for output we need unique ids for each view cell
|
---|
[590] | 4533 | CreateUniqueViewCellIds();
|
---|
[508] | 4534 |
|
---|
| 4535 | stream.open(filename.c_str());
|
---|
| 4536 | stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"<<endl;
|
---|
| 4537 | stream << "<Visibility_Solution>" << endl;
|
---|
[564] | 4538 |
|
---|
[577] | 4539 | //-- the view space bounding box
|
---|
| 4540 | stream << "<ViewSpaceBox"
|
---|
| 4541 | << " min=\"" << mViewSpaceBox.Min().x << " " << mViewSpaceBox.Min().y << " " << mViewSpaceBox.Min().z << "\""
|
---|
| 4542 | << " max=\"" << mViewSpaceBox.Max().x << " " << mViewSpaceBox.Max().y << " " << mViewSpaceBox.Max().z << "\" />" << endl;
|
---|
| 4543 |
|
---|
| 4544 | //-- the type of the view cells hierarchy
|
---|
| 4545 | stream << "<Hierarchy name=\"vspBspTree\" />" << endl;
|
---|
| 4546 |
|
---|
[508] | 4547 | //-- load the view cells itself, i.e., the ids and the pvs
|
---|
| 4548 | stream << "<ViewCells>" << endl;
|
---|
[610] | 4549 |
|
---|
| 4550 | #if 0
|
---|
| 4551 |
|
---|
[508] | 4552 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
[610] | 4553 |
|
---|
[508] | 4554 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 4555 | ExportViewCell(*it, stream);
|
---|
[610] | 4556 | #else
|
---|
| 4557 | mViewCellsTree->Export(stream);
|
---|
| 4558 | #endif
|
---|
[564] | 4559 |
|
---|
[508] | 4560 | stream << "</ViewCells>" << endl;
|
---|
[564] | 4561 |
|
---|
[508] | 4562 | //-- load the hierarchy
|
---|
[590] | 4563 | stream << "<Hierarchy>" << endl;
|
---|
[508] | 4564 | mVspBspTree->Export(stream);
|
---|
[590] | 4565 | stream << endl << "</Hierarchy>" << endl;
|
---|
[564] | 4566 |
|
---|
[508] | 4567 | stream << "</Visibility_Solution>" << endl;
|
---|
| 4568 | stream.close();
|
---|
| 4569 |
|
---|
| 4570 | cout << "finished" << endl;
|
---|
| 4571 |
|
---|
| 4572 | return true;
|
---|
[532] | 4573 | }
|
---|
| 4574 |
|
---|
| 4575 |
|
---|
| 4576 | int VspBspViewCellsManager::CastBeam(Beam &beam)
|
---|
| 4577 | {
|
---|
[535] | 4578 | return mVspBspTree->CastBeam(beam);
|
---|
[532] | 4579 | }
|
---|
[551] | 4580 |
|
---|
| 4581 |
|
---|
[587] | 4582 | void VspBspViewCellsManager::Finalize(ViewCell *viewCell,
|
---|
| 4583 | const bool createMesh)
|
---|
[551] | 4584 | {
|
---|
| 4585 | float area = 0;
|
---|
| 4586 | float volume = 0;
|
---|
| 4587 |
|
---|
[580] | 4588 | ViewCellContainer leaves;
|
---|
[582] | 4589 | mViewCellsTree->CollectLeaves(viewCell, leaves);
|
---|
[580] | 4590 |
|
---|
| 4591 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4592 |
|
---|
[693] | 4593 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
[551] | 4594 | {
|
---|
| 4595 | BspNodeGeometry geom;
|
---|
[580] | 4596 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
[551] | 4597 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4598 |
|
---|
[719] | 4599 | const float lVol = geom.GetVolume();
|
---|
| 4600 | const float lArea = geom.GetArea();
|
---|
[693] | 4601 |
|
---|
| 4602 | //(*it)->SetVolume(vol);
|
---|
| 4603 | //(*it)->SetArea(area);
|
---|
| 4604 |
|
---|
| 4605 | area += lArea;
|
---|
| 4606 | volume += lVol;
|
---|
| 4607 |
|
---|
| 4608 | CreateMesh(*it);
|
---|
[551] | 4609 | }
|
---|
| 4610 |
|
---|
| 4611 | viewCell->SetVolume(volume);
|
---|
| 4612 | viewCell->SetArea(area);
|
---|
[563] | 4613 | }
|
---|
[575] | 4614 |
|
---|
| 4615 |
|
---|
[693] | 4616 | void VspBspViewCellsManager::TestSubdivision()
|
---|
| 4617 | {
|
---|
| 4618 | ViewCellContainer leaves;
|
---|
| 4619 | mViewCellsTree->CollectLeaves(mViewCellsTree->GetRoot(), leaves);
|
---|
| 4620 |
|
---|
| 4621 | ViewCellContainer::const_iterator it, it_end = leaves.end();
|
---|
| 4622 |
|
---|
| 4623 | const float vol = mViewSpaceBox.GetVolume();
|
---|
| 4624 | float subdivVol = 0;
|
---|
| 4625 | float newVol = 0;
|
---|
| 4626 |
|
---|
| 4627 | for (it = leaves.begin(); it != it_end; ++ it)
|
---|
| 4628 | {
|
---|
| 4629 | BspNodeGeometry geom;
|
---|
| 4630 | BspLeaf *leaf = dynamic_cast<BspViewCell *>(*it)->mLeaf;
|
---|
| 4631 | mVspBspTree->ConstructGeometry(leaf, geom);
|
---|
| 4632 |
|
---|
| 4633 | const float lVol = geom.GetVolume();
|
---|
| 4634 |
|
---|
| 4635 | newVol += lVol;
|
---|
| 4636 | subdivVol += (*it)->GetVolume();
|
---|
[697] | 4637 |
|
---|
[704] | 4638 | float thres = 0.9f;
|
---|
[697] | 4639 | if ((lVol < ((*it)->GetVolume() * thres)) || (lVol * thres > ((*it)->GetVolume())))
|
---|
| 4640 | Debug << "warning: " << lVol << " " << (*it)->GetVolume() << endl;
|
---|
[693] | 4641 | }
|
---|
| 4642 |
|
---|
| 4643 | Debug << "exact volume: " << vol << endl;
|
---|
| 4644 | Debug << "subdivision volume: " << subdivVol << endl;
|
---|
| 4645 | Debug << "new volume: " << newVol << endl;
|
---|
| 4646 | }
|
---|
| 4647 |
|
---|
| 4648 |
|
---|
[577] | 4649 | void VspBspViewCellsManager::PrepareLoadedViewCells()
|
---|
| 4650 | {
|
---|
| 4651 | // TODO: do I still need this here?
|
---|
[590] | 4652 | if (0)
|
---|
[693] | 4653 | mVspBspTree->RepairViewCellsLeafLists();
|
---|
[577] | 4654 | }
|
---|
[575] | 4655 |
|
---|
[577] | 4656 |
|
---|
[697] | 4657 | void VspBspViewCellsManager::TestFilter(const ObjectContainer &objects)
|
---|
| 4658 | {
|
---|
| 4659 | Exporter *exporter = Exporter::GetExporter("filter.x3d");
|
---|
[580] | 4660 |
|
---|
[704] | 4661 | Vector3 bsize = mViewSpaceBox.Size();
|
---|
| 4662 | const Vector3 viewPoint(mViewSpaceBox.Center());
|
---|
[746] | 4663 | float w = Magnitude(mViewSpaceBox.Size())*mFilterWidth;
|
---|
| 4664 | const Vector3 width = Vector3(w);
|
---|
[704] | 4665 |
|
---|
| 4666 | PrVs testPrVs;
|
---|
| 4667 |
|
---|
[697] | 4668 | if (exporter)
|
---|
| 4669 | {
|
---|
| 4670 | ViewCellContainer viewCells;
|
---|
[704] | 4671 |
|
---|
| 4672 | const AxisAlignedBox3 tbox = GetFilterBBox(viewPoint, mFilterWidth);
|
---|
| 4673 |
|
---|
| 4674 | GetPrVS(viewPoint, testPrVs);
|
---|
| 4675 |
|
---|
[697] | 4676 | exporter->SetWireframe();
|
---|
| 4677 |
|
---|
| 4678 | exporter->SetForcedMaterial(RgbColor(1,1,1));
|
---|
[704] | 4679 | exporter->ExportBox(tbox);
|
---|
[697] | 4680 |
|
---|
| 4681 | exporter->SetFilled();
|
---|
| 4682 |
|
---|
[705] | 4683 | exporter->SetForcedMaterial(RgbColor(0,1,0));
|
---|
| 4684 | ExportViewCellGeometry(exporter, GetViewCell(viewPoint));
|
---|
| 4685 |
|
---|
| 4686 | //exporter->ResetForcedMaterial();
|
---|
| 4687 | exporter->SetForcedMaterial(RgbColor(0,0,1));
|
---|
[704] | 4688 | ExportViewCellGeometry(exporter, testPrVs.mViewCell);
|
---|
| 4689 |
|
---|
| 4690 | exporter->SetForcedMaterial(RgbColor(1,0,0));
|
---|
[697] | 4691 | exporter->ExportGeometry(objects);
|
---|
| 4692 |
|
---|
| 4693 | delete exporter;
|
---|
| 4694 | }
|
---|
| 4695 | }
|
---|
| 4696 |
|
---|
| 4697 |
|
---|
[580] | 4698 | void VspBspViewCellsManager::CollectMergeCandidates(const VssRayContainer &rays,
|
---|
| 4699 | vector<MergeCandidate> &candidates)
|
---|
| 4700 | {
|
---|
| 4701 | cout << "collecting merge candidates ... " << endl;
|
---|
| 4702 |
|
---|
| 4703 | if (mUseRaysForMerge)
|
---|
| 4704 | {
|
---|
| 4705 | mVspBspTree->CollectMergeCandidates(rays, candidates);
|
---|
| 4706 | }
|
---|
| 4707 | else
|
---|
| 4708 | {
|
---|
| 4709 | vector<BspLeaf *> leaves;
|
---|
| 4710 | mVspBspTree->CollectLeaves(leaves);
|
---|
[708] | 4711 |
|
---|
[580] | 4712 | mVspBspTree->CollectMergeCandidates(leaves, candidates);
|
---|
| 4713 | }
|
---|
| 4714 |
|
---|
| 4715 | cout << "fininshed collecting candidates" << endl;
|
---|
| 4716 | }
|
---|
| 4717 |
|
---|
| 4718 |
|
---|
[590] | 4719 | void VspBspViewCellsManager::AddCurrentViewCellsToHierarchy()
|
---|
| 4720 | {
|
---|
| 4721 | ViewCellContainer::const_iterator it, it_end = mViewCells.end();
|
---|
| 4722 | for (it = mViewCells.begin(); it != it_end; ++ it)
|
---|
| 4723 | {
|
---|
| 4724 | }
|
---|
| 4725 | }
|
---|
[580] | 4726 |
|
---|
| 4727 | //////////////////////////////////
|
---|
[575] | 4728 | ViewCellsManager *ViewCellsManagerFactory::Create(const string mName)
|
---|
| 4729 | {
|
---|
| 4730 | //TODO
|
---|
| 4731 | return NULL;// new VspBspViewCellsManager();
|
---|
| 4732 | }
|
---|
[580] | 4733 |
|
---|